diff --git a/lua/Trans/README.md b/lua/Trans/README.md
new file mode 100644
index 0000000..8faec8a
--- /dev/null
+++ b/lua/Trans/README.md
@@ -0,0 +1,58 @@
+# 字段说明
+
+## 本地
+- `word`  
+查询的字符串
+- `phonetic`  
+音标
+- `collins`  
+柯林斯星级: integer
+- `oxford` 
+是否为牛津词汇: integer (1为是)
+- `tag`  
+标签
+- `pos`  
+词性
+- `exchange`  
+词态变化
+- `translation`  
+中文翻译
+- `definition`  
+英文注释
+
+## 有道
+### 中英
+
+basic	JSONObject	简明释义
+phonetic	text	词典音标
+usPhonetic	text	美式音标
+ukPhonetic	text	英式音标
+ukSpeech	text	英式发音
+usSpeech	text	美式发音
+explains	text	基本释义
+text	text	短语
+explain	String Array	词义解释列表
+wordFormats	Object Array	单词形式变化列表
+name	String	形式名称，例如：复数
+web	JSONArray	网络释义
+phrase	String	词组
+meaning	String	含义
+synonyms	JSONObject	近义词
+pos	String	词性
+words	String Array	近义词列表
+trans	String	释义
+antonyms	ObjectArray	反义词
+relatedWords	JSONArray	相关词
+wordNet	JSONObject	汉语词典网络释义
+phonetic	String	发音
+meanings	ObjectArray	释义
+meaning	String	释义
+example	array	示例
+dict	String	词典deeplink
+webDict	String	词典网页deeplink
+sentenceSample	text	例句
+sentence	text	例句
+sentenceBold	text	将查询内容加粗的例句
+translation	text	例句翻译
+wfs	text	单词形式变化
+exam_type	text	考试类型
diff --git a/lua/Trans/api/README.md b/lua/Trans/api/README.md
index bdc0653..3b4d0ef 100644
--- a/lua/Trans/api/README.md
+++ b/lua/Trans/api/README.md
@@ -1,7 +1,132 @@
 # API说明
 
-## 概述
-- 翻译查询
-    - ``
-- 字段处理
-- 窗口显示
+<!--toc:start-->
+- [API说明](#api说明)
+  - [数据结构](#数据结构)
+    - [翻译](#翻译)
+    - [窗口](#窗口)
+    - [翻译结果](#翻译结果)
+    - [内容单位](#内容单位)
+- [窗口绘制逻辑](#窗口绘制逻辑)
+  - [hover](#hover)
+  - [float](#float)
+<!--toc:end-->
+
+## 数据结构
+
+### 翻译
+- `word`  
+待翻译的字符串: string
+- `sentence`  
+是否为句子: boolean
+- `result`  
+翻译查询的结果: table
+    > 见: [翻译结果](#翻译结果) 
+- `engine`  
+
+### 窗口
+- `style`  
+风格: string
+- `height`  
+高度: integer
+- `width`  
+宽度: integer
+- `border`  
+边框样式: string
+- `winhl`  
+窗口的高亮: string
+
+### 翻译结果
+**无特殊说明, 所有字段均为`string`类型** 
+
+- `word`  
+查询的字符串
+- `phonetic`  
+音标
+- `collins`  
+柯林斯星级: integer
+- `oxford` 
+是否为牛津词汇: integer (1为是)
+- `tag`  
+标签
+- `pos`  
+词性
+- `exchange`  
+词态变化
+- `translation`  
+中文翻译
+- `definition`  
+英文注释
+
+
+### 内容单位
+- `field` 字段
+    > 是展示的最小单位  
+
+    **属性**
+    - `1`
+    存储的文本: string
+    - `2`  (optional)
+    对应的高亮: string
+    - `_start`  
+    起始行: integer
+    - `_end`  
+    结束行: integer
+    > **注意:** `_start` 和`_end` 字段只有已经被展示到窗口后才会被设置  
+
+    **方法** 
+    - 无 
+
+- `line` 行
+    > 窗口展示的每一行, 一个行有多个`field`
+
+    **属性**
+    - `text`  
+    当前保存的字符串: string
+    - `hls`  
+    行内的高亮: table
+    - `index`  
+    行号[0为起始下标]
+    - `fields`  
+    行内保存的`field`
+    - `status`  
+    行内是否需要更新: boolean
+    > **注意:** `num` 只有已经被展示到窗口后才会被设置
+
+    **方法** 
+    - `update`  
+    更新`text`和`hls`
+    - `data`  
+    获取行的text
+    - `insert`  
+    添加新`field`
+    - `add_highlight`  
+    添加高亮
+        > 参数: bufnr
+
+- `content` 内容
+    > 窗口展示的单位, 一个内容内有多个`line`
+    
+    **方法** 
+    - `data`  
+    返回lines和highlights
+    - `insert` 
+    插入新的行
+    - `attach`  
+    将内容展示到buffer
+        > 参数: bufnr
+
+# 窗口绘制逻辑
+
+- 获取所有组件
+## hover
+- 按照order顺序加载
+- 按组件间距为4计算组件个数能否在一行以内放下
+    - 放不下则按照组件间距为4 计算组件个数并对齐
+    - 放得下则重新计算组间距
+
+获得组件行内容, 设置到行内
+获取组件高亮, 设置高亮
+
+## float
+由定义好的逻辑，绘制整个窗口
diff --git a/lua/Trans/api/query.lua b/lua/Trans/api/query.lua
index ad0014b..bee4c5f 100644
--- a/lua/Trans/api/query.lua
+++ b/lua/Trans/api/query.lua
@@ -3,23 +3,12 @@ local _, db = pcall(require, 'sqlite.db')
 if not _ then
     error('Please check out sqlite.lua')
 end
-local type_check = vim.validate
 
 -- INFO : init database
-local path = require("Trans.conf.loader").loaded_conf.base.db_path
+local path = require('Trans').conf.db_path
 local dict = db:open(path)
 
--- INFO :Auto Close
-vim.api.nvim_create_autocmd('VimLeavePre', {
-    group = require("Trans").augroup,
-    callback = function()
-        if db:isopen() then
-            db:close()
-        end
-    end
-})
-
-local query_field = {
+local query_fields = {
     'word',
     'phonetic',
     'definition',
@@ -31,19 +20,40 @@ local query_field = {
     'exchange',
 }
 
+
+local routes = {
+    offline = function(word)
+        local res = dict:select('stardict', {
+            where = {
+                word = word,
+            },
+            keys = query_fields,
+        })
+        return res[1]
+    end,
+}
+
+
+-- INFO :Auto Close
+vim.api.nvim_create_autocmd('VimLeavePre', {
+    group = require("Trans").augroup,
+    callback = function()
+        if db:isopen() then
+            db:close()
+        end
+    end
+})
+
+
 -- NOTE : local query
-M.query = function(arg)
+M.query = function(engine, word)
     -- TODO : more opts
-    type_check {
-        arg = { arg, 'string' },
+    vim.validate {
+        word = {word, 's'},
+        engine = {word, 's'},
     }
-    local res = dict:select('stardict', {
-        where = {
-            word = arg,
-        },
-        keys = query_field,
-    })
-    return res[1]
+
+    return routes[engine](word)
 end
 
 
diff --git a/lua/Trans/component/content.lua b/lua/Trans/component/content.lua
deleted file mode 100644
index c04ee90..0000000
--- a/lua/Trans/component/content.lua
+++ /dev/null
@@ -1,143 +0,0 @@
-local M = {}
-local type_check = vim.validate
-M.__index = M
-M.lines = {}
-M.highlight = {}
-M.height = 0
-M.width = 0
-M.interval = '    '
-M.opts = {}
-
-
-
-function M:new(opts)
-    if opts then
-        self.opts = opts
-    end
-
-    local content = {}
-    setmetatable(content, self)
-    return content
-end
-
--- NOTE :
--- local items = {
---     -- style1: string 不需要单独设置高亮的情况
---     'text',
---     -- style2: string[] 需要设置高亮，第二个名称为高亮组
---     {'text2', 'highlight name'},
--- }
-
--- local opts = {
---     -- 可选的参数
---     highlight = 'highlight name' -- string 该行的高亮
---     indent = 4 -- integer 该行的应该在开头的缩进
---     interval = 4 -- integer 该行组件的间隔
--- }
-function M:insert(items)
-    type_check {
-        items = { items, 'table' },
-    }
-
-    self.height = self.height + 1 -- line数加一
-
-    local line = {
-        indent = items.indent,
-        highlight = items.highlight,
-    }
-
-    local highlight = {}
-
-
-    for i, item in ipairs(items) do
-        if type(item) == 'string' then
-            item = { item }
-        end
-        line[i] = item[1]
-        if item[2] then
-            highlight[i] = item[2]
-        end
-    end
-
-    self.highlight[self.height] = highlight
-    self.lines[self.height] = line
-end
-
----Usage:
----     local buffer_id
----     local lines, highlights = M:lines()
----     vim.api.nvim_buf_set_lines(buffer_id, 0, -1, false,lines)
----     for i, hl in ipairs(highlights) do
----         vim.api.nvim_buf_add_highlight(buffer_id, 0, hl.name, i, hl._start, hl._end)
----     end
----@return table line
----@return table highlight
-function M:data()
-    -- NOTE 返回格式化的行，如果需要高亮，则第二个参数返回高亮
-    local lines = {}
-    local highlights = {}
-
-    for index = 1, #self.lines do
-        local line = ''
-        local highlight = {}
-        local l = self.lines[index]
-        local hl = self.highlight[index]
-        if l.indent then
-            line = (' '):rep(l.indent)
-        end
-
-        if l.highlight then
-            line = line .. table.concat(l, self.interval)
-            highlight[1] = { name = l.highlight, _start = 1, _end = -1 }
-
-        else
-            line = line .. l[1]
-
-            if hl[1] then
-                -- WARN :可能需要设置成字符串宽度!!!
-                table.insert(highlight, { name = hl[1], _start = #line - #l[1], _end = #line })
-            end
-
-            for i = 2, #l do
-                line = line .. self.interval .. l[i]
-                if hl[i] then
-                    local _end = #line
-                    table.insert(highlight, { name = hl[i], _start = _end - #l[i], _end = _end })
-                end
-            end
-        end
-
-        lines[index] = line
-        local len = #line
-        if self.width < len then
-            self.width = len
-        end
-        highlights[index] = highlight
-    end
-    return lines, highlights
-end
-
-
-function M:attach()
-    local height = self.opts.win.height
-    local width = self.opts.win.width
-
-    local lines, hls = self:data()
-    vim.api.nvim_buf_set_lines(self.opts.bufnr, 0, -1, false, lines)
-
-    for line, l_hl in ipairs(hls) do
-        for _, hl in ipairs(l_hl) do
-            vim.api.nvim_buf_add_highlight(self.opts.bufnr, -1, hl.name, line - 1, hl._start, hl._end)
-        end
-    end
-
-    if self.height < height then
-        vim.api.nvim_win_set_height(self.opts.winid, self.height)
-    end
-
-    if self.width < width then
-        vim.api.nvim_win_set_width(self.opts.winid, self.width)
-    end
-end
-
-return M
diff --git a/lua/Trans/component/items.lua b/lua/Trans/component/items.lua
deleted file mode 100644
index d1c775e..0000000
--- a/lua/Trans/component/items.lua
+++ /dev/null
@@ -1,20 +0,0 @@
-local M = {}
-M.__index = M
-M.len = 0
-
-function M:new()
-    local items = {}
-    setmetatable(items, self)
-    return items
-end
-
-function M:insert(item, highlight)
-    table.insert(self, item)
-    self.len = self.len + #item
-end
-
-function M:format(win_width)
-
-end
-
-return M
diff --git a/lua/Trans/component/offline/Definition.lua b/lua/Trans/component/offline/Definition.lua
deleted file mode 100644
index 54d9f77..0000000
--- a/lua/Trans/component/offline/Definition.lua
+++ /dev/null
@@ -1,68 +0,0 @@
-local M = {}
-
-M.component = function (field, max_size)
-    if field.definition and field.definition ~= '' then
-        local ref = {
-            { '英文注释', 'TransRef' }
-        }
-
-        local definitions = {
-            highlight = 'TransDefinition',
-            needformat = true,
-            indent = 4,
-        }
-        local size = 0
-        for defin in vim.gsplit(field.definition, '\n', true) do
-            if defin ~= '' then
-                table.insert(definitions, defin)
-
-                size = size + 1
-                if size == max_size then
-                    break
-                end
-            end
-        end
-
-        return { ref, definitions }
-    end
-end
-
-return M
-
---[[n a formation of people or things one beside another
-n a mark that is long relative to its width
-n a formation of people or things one behind another
-n a length (straight or curved) without breadth or thickness; the trace of a moving point
-n text consisting of a row of words written across a page or computer screen
-n a single frequency (or very narrow band) of radiation in a spectrum
-n a fortified position (especially one marking the most forward position of troops)
-n a course of reasoning aimed at demonstrating a truth or falsehood; the methodical process of logical reasoning
-n a conductor for transmitting electrical or optical signals or electric power
-n a connected series of events or actions or developments
-n a spatial location defined by a real or imaginary unidimensional extent
-n a slight depression in the smoothness of a surface
-n a pipe used to transport liquids or gases
-n the road consisting of railroad track and roadbed
-n a telephone connection
-n acting in conformity
-n the descendants of one individual
-n something (as a cord or rope) that is long and thin and flexible
-n the principal activity in your life that you do to earn money
-n in games or sports; a mark indicating positions or bounds of the playing area
-n (often plural) a means of communication or access
-n a particular kind of product or merchandise
-n a commercial organization serving as a common carrier
-n space for one line of print (one column wide and 1/14 inch deep) used to measure advertising
-n the maximum credit that a customer is allowed
-n a succession of notes forming a distinctive sequence
-n persuasive but insincere talk that is usually intended to deceive or impress
-n a short personal letter
-n a conceptual separation or distinction
-n mechanical system in a factory whereby an article is conveyed through sites at which successive operations are performed on it
-v be in line with; form a line along
-v cover the interior of
-v make a mark or lines on a surface
-v mark with lines
-v fill plentifully
-v reinforce with fabric
---]]
diff --git a/lua/Trans/component/offline/Exchange.lua b/lua/Trans/component/offline/Exchange.lua
deleted file mode 100644
index 90cb93c..0000000
--- a/lua/Trans/component/offline/Exchange.lua
+++ /dev/null
@@ -1,45 +0,0 @@
-local M = {}
-
-local exchange_map = {
-    p = '过去式',
-    d = '过去分词',
-    i = '现在分词',
-    r = '形容词比较级',
-    t = '形容词最高级',
-    s = '名词复数形式',
-    f = '第三人称单数',
-    ['0'] = '词根',
-    ['1'] = '词根的变化形式',
-    ['3'] = '第三人称单数',
-}
-
-M.component = function(field)
-    -- TODO
-    if field.exchange and field.exchange ~= '' then
-        local ref = {
-            { '词型变化', 'TransRef' },
-        }
-        local exchanges = {
-            needformat = true,
-            highlight = 'TransExchange',
-            indent = 4,
-            emptyline = true,
-        }
-
-        for _exchange in vim.gsplit(field.exchange, '/', true) do
-            local prefix = exchange_map[_exchange:sub(1, 1)]
-            if prefix then
-                local exchange = prefix .. _exchange:sub(2)
-                -- local exchange = exchange_map[_exchange:sub(1, 1)] .. _exchange:sub(2)
-                table.insert(exchanges, exchange)
-
-            else
-                error('add exchange_map for [' .. _exchange .. ']')
-            end
-        end
-
-        return { ref, exchanges }
-    end
-end
-
-return M
diff --git a/lua/Trans/component/offline/Pos.lua b/lua/Trans/component/offline/Pos.lua
deleted file mode 100644
index 7d52ae5..0000000
--- a/lua/Trans/component/offline/Pos.lua
+++ /dev/null
@@ -1,20 +0,0 @@
-local M = {}
-
-M.component = function(field)
-    -- TODO
-    if field.pos and field.pos ~= '' then
-        local ref = {
-            { '词性:', 'TransRef' },
-        }
-        local pos = {
-            { field.pos },
-            highlight = 'TransPos',
-            indent = 4,
-            emptyline = true,
-        }
-
-        return { ref, pos }
-    end
-end
-
-return M
diff --git a/lua/Trans/component/offline/Tag.lua b/lua/Trans/component/offline/Tag.lua
deleted file mode 100644
index 9ccf18e..0000000
--- a/lua/Trans/component/offline/Tag.lua
+++ /dev/null
@@ -1,46 +0,0 @@
-local M = {}
-
-local tag_map = {
-    zk = '中考',
-    gk = '高考',
-    ky = '考研',
-    cet4 = '四级',
-    cet6 = '六级',
-    ielts = '雅思',
-    toefl = '托福',
-    gre = 'GRE',
-}
-
----从查询结果中获取字符串
----@param field table 查询的结果
----@return component? component 提取的组件信息[包含多个组件]
-M.component = function(field)
-    -- TODO
-    if field.tag and field.tag ~= '' then
-        local ref = {
-            { '标签:', 'TransRef' },
-        }
-
-        local tags = {
-            needformat = true,
-            highlight = 'TransTag',
-            indent = 4,
-            emptyline = true,
-        }
-
-        for _tag in vim.gsplit(field.tag, ' ', true) do
-            local tag = tag_map[_tag]
-
-            if tag then
-                table.insert(tags, tag)
-            else
-                error('add tag_map for [' .. _tag .. ']')
-            end
-        end
-
-        return { ref, tags }
-    end
-end
-
-
-return M
diff --git a/lua/Trans/component/offline/Title.lua b/lua/Trans/component/offline/Title.lua
deleted file mode 100644
index 3613893..0000000
--- a/lua/Trans/component/offline/Title.lua
+++ /dev/null
@@ -1,67 +0,0 @@
-local M = {}
-
-local display = require("Trans.conf.loader").loaded_conf.ui.display
-local icon = require("Trans.conf.loader").loaded_conf.ui.icon
-
--- {
---   collins = 3,
---   definition = "n. an expression of greeting",
---   exchange = "s:hellos",
---   oxford = 1,
---   phonetic = "hə'ləʊ",
---   pos = "u:97/n:3",
---   tag = "zk gk",
---   translation = "n. 表示问候， 惊奇或唤起注意时的用语\nint. 喂；哈罗\nn. (Hello)人名；(法)埃洛",
---   word = "hello"
--- }
-
-
--- local data = {
---     { word, 'TransWord' },
---     -- NOTE :如果平配置设置显示，并且数据库中存在则有以下字段
---     { phonetic, 'TransPhonetic' },
---     collins,
---     oxford
---     -- { phonetic, 'TransPhonetic' },
--- }
-
-
----@alias items
----| 'string[]'       # 所有组件的信息
----| 'needformat?'# 是否需要格式化
----| 'highlight?' # 整个组件的高亮
----| 'indent?'    # 每行整体的缩进
----@alias component items[]
----从查询结果中获取字符串
----@param field table 查询的结果
----@return component component 提取的组件信息[包含多个组件]
-M.component = function(field)
-    local component = {}
-    local data = {
-        { field.word, 'TransWord' },
-    }
-
-    if display.phnoetic and field.phonetic and field.phonetic ~= '' then
-        table.insert(
-            data,
-            { '[' .. field.phonetic .. ']', 'TransPhonetic' }
-        )
-    end
-
-    if display.collins and field.collins then
-        table.insert(data, {
-            icon.star:rep(field.collins)
-        })
-    end
-
-    if display.oxford and field.oxford then
-        table.insert(data,
-            { field.oxford == 1 and icon.isOxford or icon.notOxford, }
-        )
-    end
-
-    component[1] = data
-    return component
-end
-
-return M
diff --git a/lua/Trans/component/offline/Translation.lua b/lua/Trans/component/offline/Translation.lua
deleted file mode 100644
index bdfe0e0..0000000
--- a/lua/Trans/component/offline/Translation.lua
+++ /dev/null
@@ -1,28 +0,0 @@
-local M = {}
-
-M.component = function(field, max_size)
-    if field.translation then
-        local ref = {
-            { '中文翻译', 'TransRef' }
-        }
-
-        local translations = {
-            highlight = 'TransTranslation',
-            indent = 4,
-            emptyline = true,
-            needformat = true,
-        }
-        local size = 0
-        for trans in vim.gsplit(field.translation, '\n', true) do
-            size = size + 1
-            table.insert(translations, trans)
-            if size == max_size then 
-                break
-            end
-        end
-
-        return { ref, translations }
-    end
-end
-
-return M
diff --git a/lua/Trans/conf/default.lua b/lua/Trans/conf/default.lua
deleted file mode 100644
index 1554085..0000000
--- a/lua/Trans/conf/default.lua
+++ /dev/null
@@ -1,119 +0,0 @@
-local M = {}
-
-M.conf = {
-    style = {
-        ui = {
-            input = 'float',
-            n = 'cursor',
-            v = 'cursor',
-        },
-        window = {
-            cursor = {
-                border = 'rounded',
-                width = 40,
-                height = 50,
-            },
-            float = {
-                border = 'rounded',
-                width = 0.9,
-                height = 0.8,
-            },
-        },
-    },
-
-    order = {
-        offline = {
-            'Title',
-            'Tag',
-            'Pos',
-            'Exchange',
-            'Translation',
-            -- NOTE :如果你想限制某个组件的行数，可以设置max_size
-            -- { 'Definition', max_size = 4 },
-        },
-        -- online = {
-        --     -- TODO
-        -- },
-    },
-    ui = {
-        highlight = {
-            TransWord = {
-                fg = '#7ee787',
-                bold = true,
-            },
-            TransPhonetic = {
-                link = 'Linenr'
-            },
-            TransRef = {
-                fg = '#75beff',
-                bold = true,
-            },
-            TransTag = {
-                fg = '#e5c07b',
-            },
-            TransExchange = {
-                link = 'TransTag',
-            },
-            TransPos = {
-                link = 'TransTag',
-            },
-            TransTranslation = {
-                link = 'TransWord',
-            },
-            TransDefinition = {
-                -- fg = '#bc8cff',
-                link = 'Moremsg',
-            },
-            TransCursorWin = {
-                link = 'Normal',
-            },
-
-            TransCursorBorder = {
-                link = 'FloatBorder',
-            }
-        },
-        icon = {
-            star = '⭐',
-            isOxford = '✔',
-            notOxford = ''
-        },
-        display = {
-            phnoetic = true,
-            collins = true,
-            oxford = true,
-            -- TODO
-            -- history = false,
-        },
-    },
-    base = {
-        db_path = '$HOME/.vim/dict/ultimate.db',
-        auto_close = true,
-        engine = {
-            -- TODO
-            'offline',
-        }
-    },
-    -- map = {
-    --     -- TODO
-    -- },
-    -- history = {
-    --     -- TOOD
-    -- }
-
-    -- TODO  add online translate engine
-    -- online_search = {
-    --     enable = false,
-    --     engine = {},
-    -- }
-
-    -- TODO register word
-}
-
--- INFO :加载的规则 [LuaRule]
-M.replace_rules = {
-    'order.*',
-    'ui.highlight.*',
-}
-
-
-return M
diff --git a/lua/Trans/conf/loader.lua b/lua/Trans/conf/loader.lua
deleted file mode 100644
index 8245116..0000000
--- a/lua/Trans/conf/loader.lua
+++ /dev/null
@@ -1,60 +0,0 @@
--- -@diagnostic disable: unused-local, unused-function, lowercase-global
-local M = {}
-
-local replace_rules = require("Trans.conf.default").replace_rules
-
-local star_format = [[
-local def, usr = default_conf.%s, user_conf.%s
-if def and usr then
-    for k, v in pairs(usr) do
-        def[k] = v
-        usr[k] = nil
-    end
-end
-]]
-
-
-local plain_format = [[
-default_conf.%s = user_conf.%s or default_conf.%s
-]]
-
-local function pre_process()
-    if replace_rules then
-        for _, v in ipairs(replace_rules) do
-            local start = v:find('.*', 1, true)
-            local operation
-            if start then
-                -- 替换表内所有键
-                v = v:sub(1, start - 1)
-                -- print('v is :', v)
-                operation = string.format(star_format, v, v)
-            else
-                operation = plain_format:format(v, v, v)
-            end
-            -- print(operation)
-            pcall(loadstring(operation))
-        end
-    end
-end
-
-M.load_conf = function(conf)
-    user_conf    = conf or {}
-    default_conf = require("Trans.conf.default").conf
-    if user_conf.style and user_conf.window then
-    end
-
-    pre_process()
-    M.loaded_conf = vim.tbl_deep_extend('force', default_conf, user_conf)
-    local win = M.loaded_conf.style.window
-    assert(win.float.height <= 1 and win.float.height > 0 and win.cursor.height > 1, win.cursor.width > 1)
-
-    win.float.width = math.floor(win.float.width * vim.o.columns)
-    win.float.height = math.floor(win.float.height * (vim.o.lines - vim.o.cmdheight))
-
-    user_conf = nil
-    default_conf = nil
-end
-
-M.loaded_conf = nil
-
-return M
diff --git a/lua/Trans/core/backup.lua b/lua/Trans/core/backup.lua
deleted file mode 100644
index fb8cd0e..0000000
--- a/lua/Trans/core/backup.lua
+++ /dev/null
@@ -1,294 +0,0 @@
-local M          = {}
-
-
-local opt = {
-    method = 'select',
-    view = 'cursor',
-}
-
-M.Translate = function(opts)
-    local res = get_query_res(opts.method)
-    -- TODO <++>
-end
-
--- M.Translate_online = function ()
---     -- TOOD
--- end
-
-
--- local win = 0
--- local line = 0
--- local pos_info = {}
---
--- local handler = {}
--- api.nvim_buf_set_option(buf, 'filetype', 'Trans')
---
--- local function show_win(width, height)
--- end
---
--- -- NOTE title
--- handler.title = function(text, query_res)
---     local title = ('%s    [%s]    %s    %s'):format(
---         query_res.word,
---         query_res.phonetic,
---         (display.oxford and (query_res.oxford == 1 and icon.isOxford or icon.notOxford) or ''),
---         ((display.collins_star and query_res.collins) and string.rep(icon.star, query_res.collins) or '')
---     )
---     table.insert(text, title)
---
---     pos_info.title = {}
---     pos_info.title.word = #query_res.word
---     pos_info.title.phonetic = query_res.phonetic and #query_res.phonetic or 3
---     pos_info.title.line = line
---     line = line + 1
--- end
---
--- -- NOTE  tag
--- handler.tag = function(text, query_res)
---     if query_res.tag and #query_res.tag > 0 then
---         local tag = query_res.tag:gsub('zk', '中考'):gsub('gk', '高考'):gsub('ky', '考研'):gsub('cet4', '四级'):
---             gsub('cet6', '六级'):gsub('ielts', '雅思'):gsub('toefl', '托福'):gsub('gre', 'GRE')
---
---         table.insert(text, '标签:')
---         table.insert(text, '    ' .. tag)
---         table.insert(text, '')
---
---         pos_info.tag = line
---         line = line + 3
---     end
--- end
---
--- -- NOTE pos 词性
--- handler.pos = function(text, query_res)
---     if query_res.pos and #query_res.pos > 0 then
---         table.insert(text, '词性:')
---
---         local content = 0
---         for v in vim.gsplit(query_res.pos, [[/]]) do
---             table.insert(text, string.format('    %s', v .. '%'))
---             content = content + 1
---         end
---
---         table.insert(text, '')
---
---         pos_info.pos = {}
---         pos_info.pos.line = line
---         pos_info.pos.content = content
---         line = line + content + 2
---     end
--- end
---
--- -- NOTE exchange
--- handler.exchange = function(text, query_res)
---     if query_res.exchange and #query_res.exchange > 0 then
---         table.insert(text, '词形变化:')
---
---         local exchange_map = {
---             p = '过去式',
---             d = '过去分词',
---             i = '现在分词',
---             r = '形容词比较级',
---             t = '形容词最高级',
---             s = '名词复数形式',
---             O = '词干',
---             ['3'] = '第三人称单数',
---         }
---
---         local content = 0
---         for v in vim.gsplit(query_res.exchange, [[/]]) do
---             table.insert(text, string.format('    %s:  %s', exchange_map[v:sub(1, 1)], v:sub(3)))
---             content = content + 1
---             -- FIXME: 中文字符与字母位宽不一致, 暂时无法对齐
---         end
---         table.insert(text, '')
---
---         pos_info.exchange = {}
---         pos_info.exchange.line = line
---         pos_info.exchange.content = content
---         line = line + content + 2
---     end
--- end
---
--- -- NOTE  中文翻译
--- handler.zh = function(text, query_res)
---     if query_res.translation then
---         table.insert(text, '中文翻译:')
---
---         local content = 0
---         for v in vim.gsplit(query_res.translation, '\n') do
---             table.insert(text, '    ' .. v)
---             content = content + 1
---         end
---         table.insert(text, '')
---
---         pos_info.zh = {}
---         pos_info.zh.line = line
---         pos_info.zh.content = content
---         line = content + line + 2
---     end
--- end
---
--- -- NOTE  英文翻译
--- handler.en = function(text, query_res)
---     if query_res.definition and #query_res.definition > 0 then
---         table.insert(text, '英文翻译:')
---
---         local content = 0
---         for v in vim.gsplit(query_res.definition, '\n') do
---             table.insert(text, '    ' .. v)
---             content = content + 1
---         end
---         table.insert(text, '')
---
---         pos_info.en = {}
---         pos_info.en.line = line
---         pos_info.en.content = content
---         line = line + content + 2
---     end
--- end
---
--- -- @return string array
--- local function get_text(query_res)
---     local text = {}
---     for _, v in ipairs(order) do
---         handler[v](text, query_res)
---     end
---     return text
--- end
---
--- local function set_text(query_res)
---     local text = query_res and get_text(query_res) or { '没有找到相关定义' }
---
---     api.nvim_buf_set_lines(buf, 0, -1, false, text)
---     local width = 0
---     for _, v in ipairs(text) do
---         if #v > width then
---             width = v:len()
---         end
---     end
---     return width, #text
--- end
---
--- local hl_handler = {}
---
--- hl_handler.title = function()
---     api.nvim_buf_add_highlight(buf, -1, hl.word, pos_info.title.line, 0, pos_info.title.word)
---     api.nvim_buf_add_highlight(buf, -1, hl.phonetic, pos_info.title.line, pos_info.title.word + 5,
---         pos_info.title.word + 5 + pos_info.title.phonetic)
--- end
---
--- hl_handler.tag = function()
---     if pos_info.tag then
---         api.nvim_buf_add_highlight(buf, -1, hl.ref, pos_info.tag, 0, -1)
---         api.nvim_buf_add_highlight(buf, -1, hl.tag, pos_info.tag + 1, 0, -1)
---     end
--- end
---
--- hl_handler.pos = function()
---     if pos_info.pos then
---         api.nvim_buf_add_highlight(buf, -1, hl.ref, pos_info.pos.line, 0, -1)
---         for i = 1, pos_info.pos.content, 1 do
---             api.nvim_buf_add_highlight(buf, -1, hl.pos, pos_info.pos.line + i, 0, -1)
---         end
---     end
--- end
---
--- hl_handler.exchange = function()
---     if pos_info.exchange then
---         api.nvim_buf_add_highlight(buf, -1, hl.ref, pos_info.exchange.line, 0, -1)
---         for i = 1, pos_info.exchange.content, 1 do
---             api.nvim_buf_add_highlight(buf, -1, hl.exchange, pos_info.exchange.line + i, 0, -1)
---         end
---     end
--- end
---
--- hl_handler.zh = function()
---     api.nvim_buf_add_highlight(buf, -1, hl.ref, pos_info.zh.line, 0, -1)
---     for i = 1, pos_info.zh.content, 1 do
---         api.nvim_buf_add_highlight(buf, -1, hl.zh, pos_info.zh.line + i, 0, -1)
---     end
--- end
---
--- hl_handler.en = function()
---     if pos_info.en then
---         api.nvim_buf_add_highlight(buf, -1, hl.ref, pos_info.en.line, 0, -1)
---         for i = 1, pos_info.en.content, 1 do
---             api.nvim_buf_add_highlight(buf, -1, hl.en, pos_info.en.line + i, 0, -1)
---         end
---     end
--- end
---
---
--- local function set_hl()
---     for _, v in ipairs(order) do
---         hl_handler[v]()
---     end
--- end
---
--- local function clear_tmp_info()
---     pos_info = {}
---     line = 0
--- end
---
---
--- function M.query(mode)
---     assert(buf > 0)
---     local word = ''
---     if mode == 'n' then
---         word = vim.fn.expand('<cword>')
---     elseif mode == 'v' then
---         word = get_visual_selection()
---     elseif mode == 'I' then
---         word = vim.fn.input('请输入您要查询的单词: ')
---         -- vim.ui.input({prompt = '请输入您要查询的单词: '}, function (input)
---         --     word = input
---         -- end)
---     else
---         error('mode argument is invalid')
---     end
---
---     local res = require("Trans.database").query(word)
---     local width, height = set_text(res)
---     show_win(width, height)
---     if res then
---         set_hl()
---         clear_tmp_info()
---     end
---
---     if auto_close then
---         api.nvim_create_autocmd(
---             { 'InsertEnter', 'CursorMoved', 'BufLeave', }, {
---             buffer = 0,
---             once = true,
---             callback = M.close_win,
---         })
---     end
--- end
---
--- function M.query_cursor()
---     M.query('n')
--- end
---
--- function M.query_select()
---     M.query('v')
--- end
---
--- function M.query_input()
---     M.query('I')
--- end
---
--- function M.close_win()
---     if win > 0 then
---         api.nvim_win_close(win, true)
---         win = 0
---     end
--- end
---
--- -- function M.enter_win()
--- --     if api.nvim_win_is_valid(win) then
--- --     else
--- --         error('current win is not valid')
--- --     end
--- -- end
---
--- return M
diff --git a/lua/Trans/core/content.lua b/lua/Trans/core/content.lua
new file mode 100644
index 0000000..40f659b
--- /dev/null
+++ b/lua/Trans/core/content.lua
@@ -0,0 +1,145 @@
+local M = {}
+M.__index = M
+
+local get_width = vim.fn.strdisplaywidth
+-- local get_width = vim.fn.strwidth
+-- local get_width = vim.api.nvim_strwidth
+
+---@alias block table add_hl(key, hl_name)
+---返回分配的块状区域, e_col 设置为-1则为末尾
+---@param s_row integer 起始行
+---@param s_col integer 起始列
+---@param height integer 行数
+---@param width integer 块的宽度
+---@return block
+function M:alloc_block(s_row, s_col, height, width)
+    -- -1为到行尾
+    width = width == -1 and self.width or width
+    local e_col = s_col + width
+
+    local block = {
+        add_hl = function(key, hl_name)
+            table.insert(self.highlight[s_row + key], {
+                name = hl_name,
+                _start = s_col,
+                _end = e_col,
+            })
+        end
+    }
+
+    return setmetatable(block, {
+        -- 访问该表的操作, 映射成lines
+        __index = function(_, key)
+            assert(0 < key and key <= height)
+            --- FIXME : Unicode stirng sub
+            return self.lines[s_row + key]:sub(s_col, e_col)
+        end,
+
+        __newindex = function(_, key, value)
+            assert(0 < key and key <= height)
+            local wid = get_width(value)
+            if wid > width then
+                error('check out the str width: Max ->' .. self.width .. ' str ->' .. wid)
+            else
+                value = value .. (' '):rep(width - wid)
+            end
+
+            local line = s_row + key - 1
+            self.lines[line] = self.lines[line]:sub(1, s_col - 1) .. value .. self.lines[line]:sub(e_col + 1)
+        end,
+    })
+end
+
+function M:alloc_newline()
+    self.len = self.len + 1
+    local items = {}
+    local len = 0
+    local size = 0
+    return {
+        add_item = function(item, highlight)
+            size = size + 1
+            local wid = get_width(item)
+            items[size] = { item, highlight }
+            len = len + wid
+        end,
+
+        load_line = function()
+            local space = math.floor((self.width - len) / (size - 1))
+            assert(space > 0)
+            local interval = (' '):rep(space)
+            local value = ''
+            local function load_item(index)
+                if items[index][2] then
+                    local _start = #value
+                    local _end = _start + #items[index][2]
+                    table.insert(self.highlights[self.len], {
+                        name = items[index][2],
+                        _start = _start,
+                        _end = _end
+                    })
+                end
+                value = value .. items[index][1]
+            end
+
+            load_item(1)
+            for i = 2, size do
+                value = value .. interval
+                load_item(i)
+            end
+
+            self.lines[self.len] = value
+        end
+    }
+end
+
+function M:addline(text, highlight)
+    self.len = self.len + 1
+    if highlight then
+        table.insert(self.highlights[self.len], {
+            name = highlight,
+            _start = 1,
+            _end = -1
+        })
+    end
+    self.lines[self.len] = text
+end
+
+-- 窗口宽度
+function M:new(width)
+    vim.validate {
+        width = { width, 'n' }
+    }
+    local default = (' '):rep(width) -- default value is empty line
+    local new_content = {
+        width = width,
+        len = 0,
+        highlights = setmetatable({}, { -- always has default value
+            __index = function(tbl, key)
+                tbl[key] = {}
+                return tbl[key]
+            end
+        }),
+
+    }
+
+    new_content.lines = setmetatable({}, {
+        __index = function(tbl, key)
+            tbl[key] = default
+            return tbl[key]
+        end,
+
+        __newindex = function(tbl, key, value)
+            if value then
+                for _ = new_content.len + 1, key - 1 do
+                    rawset(tbl, key, '')
+                end
+
+                rawset(tbl, key, value)
+                new_content.len = key
+            end
+        end
+    })
+    return setmetatable(new_content, self)
+end
+
+return M
diff --git a/lua/Trans/core/handler.lua b/lua/Trans/core/handler.lua
new file mode 100644
index 0000000..f96ac01
--- /dev/null
+++ b/lua/Trans/core/handler.lua
@@ -0,0 +1,152 @@
+local icon = require('Trans').conf.icon
+
+-- local components = {
+--     'title',
+--     'tag',
+--     'pos',
+--     'exchange',
+--     'translation',
+--     'definition'
+-- }
+
+local tag_map = {
+    zk    = '中考',
+    gk    = '高考',
+    ky    = '考研',
+    cet4  = '四级',
+    cet6  = '六级',
+    ielts = '雅思',
+    toefl = '托福',
+    gre   = 'gre ',
+}
+local pos_map = {
+    a = '代词pron        ',
+    c = '连接词conj      ',
+    i = '介词prep        ',
+    j = '形容词adj       ',
+    m = '数词num         ',
+    n = '名词n           ',
+    p = '代词pron        ',
+    r = '副词adv         ',
+    u = '感叹词int       ',
+    v = '动词v           ',
+    x = '否定标记not     ',
+    t = '不定式标记infm  ',
+    d = '限定词determiner',
+}
+
+
+local exchange_map = {
+    ['p'] = '过去式      ',
+    ['d'] = '过去分词    ',
+    ['i'] = '现在分词    ',
+    ['r'] = '比较级      ',
+    ['t'] = '最高级      ',
+    ['s'] = '复数        ',
+    ['0'] = '原型        ',
+    ['1'] = '类别        ',
+    ['3'] = '第三人称单数',
+    -- ['f'] = '第三人称单数',
+}
+
+local function exist(res)
+    return res and res ~= ''
+end
+
+M = {
+    title = function(result, content)
+        local line = content:alloc_newline()
+        line.add_item(result.word, 'TransWord')
+        local pho = ('[' .. (exist(result.phonetic) and result.phonetic or icon.notfound) .. ']')
+        -- line.add_item(pho, 'TransPhonetic', #pho)
+        line.add_item(pho, 'TransPhonetic')
+        line.add_item((exist(result.collins) and icon.star:rep(result.collins) or icon.notfound))
+        line.add_item((exist(result.oxford) and icon.yes or icon.no))
+        line.load_line()
+    end,
+
+    tag = function(result, content)
+        if exist(result.tag) then
+            content:addline('标签:', 'TransRef')
+            local tags = vim.tbl_map(function(tag)
+                return tag_map[tag]
+            end, vim.split(result.tag, ' ', { plain = true, trimempry = true }))
+
+            local size = #tags
+            local i = 1
+            while i <= size do
+                content:addline('    ' .. tags[i] .. '    ' .. (tags[i + 1] or '') .. '    ' .. (tags[i + 2] or ''),
+                    'TransTag')
+                i = i + 3
+            end
+            content:addline('')
+        end
+    end,
+
+    pos = function(result, content)
+        if exist(result.pos) then
+            content:addline('词性:', 'TransRef')
+            vim.tbl_map(function(pos)
+                content:addline('    ' .. pos_map[pos:sub(1, 1)] .. pos:sub(3) .. '%', 'TransPos')
+            end, vim.split(result.pos, '/', { plain = true, trimempry = true }))
+
+            content:addline('')
+        end
+    end,
+
+    exchange = function(result, content)
+        if exist(result.exchange) then
+            content:addline('词性变化:', 'TransRef')
+            vim.tbl_map(function(exc)
+                content:addline('    ' .. exchange_map[exc:sub(1, 1)] .. '    ' .. exc:sub(3), 'TransExchange')
+                -- content:addline('    ' .. exchange_map[exc:sub(1, 1)] .. exc:sub(2), 'TransExchange')
+            end, vim.split(result.exchange, '/', { plain = true, trimempry = true }))
+
+            content:addline('')
+        end
+    end,
+
+    translation = function(result, content)
+        if result.translation and result.translation ~= '' then
+            local ref = {
+                { '中文翻译:', 'TransRef' }
+            }
+
+            local translations = {
+                highlight = 'TransTranslation',
+                indent = 4,
+                emptyline = true,
+            }
+            for trans in vim.gsplit(result.translation, '\n', true) do
+                table.insert(translations, trans)
+            end
+
+            return { ref, translations }
+        end
+    end,
+
+
+    definition = function(result, content)
+        if result.definition and result.definition ~= '' then
+            local ref = {
+                { '英文注释:', 'TransRef' }
+            }
+
+            local definitions = {
+                highlight = 'TransDefinition',
+                indent = 4,
+                emptyline = true,
+            }
+
+            for defin in vim.gsplit(result.definition, '\n', true) do
+                if defin ~= '' then
+                    table.insert(definitions, defin)
+                end
+            end
+
+            return { ref, definitions }
+        end
+    end
+}
+
+return M
diff --git a/lua/Trans/core/init.lua b/lua/Trans/core/init.lua
index 8a499bd..e5de1fe 100644
--- a/lua/Trans/core/init.lua
+++ b/lua/Trans/core/init.lua
@@ -1,7 +1,59 @@
 local M = {}
+local conf = require('Trans').conf
+local api = require('Trans.api')
+local win = require('Trans.core.window')
+local handler = require('Trans.core.handler')
+local c = require('Trans.core.content')
+
+
+local function get_select()
+    local s_start = vim.fn.getpos("v")
+    local s_end = vim.fn.getpos(".")
+    local n_lines = math.abs(s_end[2] - s_start[2]) + 1
+    local lines = vim.api.nvim_buf_get_lines(0, s_start[2] - 1, s_end[2], false)
+    lines[1] = string.sub(lines[1], s_start[3], -1)
+    if n_lines == 1 then
+        lines[n_lines] = string.sub(lines[n_lines], 1, s_end[3] - s_start[3] + 1)
+    else
+        lines[n_lines] = string.sub(lines[n_lines], 1, s_end[3])
+    end
+    return table.concat(lines, '')
+end
+
+M.translate = function(method, view)
+    method = method or vim.api.nvim_get_mode().mode
+    view = view or conf.view[method]
+    local word
+    if method == 'input' then
+        ---@diagnostic disable-next-line: param-type-mismatch
+        word = vim.fn.input('请输入您要查询的单词:') -- TODO Use Telescope with fuzzy finder
+    elseif method == 'n' then
+        word = vim.fn.expand('<cword>')
+    elseif method == 'v' then
+        word = get_select()
+    end
+
+
+    win.init(view)
+    local result = api.query('offline', word)
+
+    if result then
+        local content = c:new(win.width)
+
+        for i = 1, #conf.order do
+            handler[conf.order[i]](result, content)
+        end
+
+        win.draw(content)
+    else
+        local line = { '⚠️   本地没有找到相应的结果' }
+        vim.api.nvim_buf_set_lines(win.bufnr, 0, -1, false, line)
+        local wid = vim.fn.strdisplaywidth(line[1])
+        vim.api.nvim_win_set_width(win.id, wid)
+        vim.api.nvim_win_set_height(win.id, #line)
+        win.auto_close()
+    end
+end
 
-M.process = require('Trans.core.process')
-M.query = require('Trans.core.query')
--- M.show_win = require('Trans.core.show_win')
 
 return M
diff --git a/lua/Trans/core/process.lua b/lua/Trans/core/process.lua
deleted file mode 100644
index aba65bf..0000000
--- a/lua/Trans/core/process.lua
+++ /dev/null
@@ -1,170 +0,0 @@
-local type_check = vim.validate
-
--- NOTE :中文字符及占两个字节宽，但是在lua里是3个字节长度
--- 为了解决中文字符在lua的长度和neovim显示不一致的问题
-local get_width = vim.fn.strdisplaywidth
-
-local function format(win_width, items)
-    local size = #items
-    local tot_width = 0
-
-    if items.indent then
-        win_width = win_width - items.indent
-    end
-
-    for i = 1, size do
-        if type(items[i]) == 'string' then
-            items[i] = { items[i] }
-        end
-        tot_width = tot_width + #items[i][1] + 4
-    end
-
-
-    -- 判断宽度是否超过最大宽度
-    if tot_width > win_width + 4 then
-        -- 放不下则需要分成多行
-        local lines = {}
-
-        -- 行内字符串按照宽度排序
-        table.sort(items, function(a, b)
-            return #a[1] > #b[1]
-        end)
-
-        local cols = 1
-        win_width = win_width - #items[1][1]
-
-        while win_width > 0 and cols < size do
-            cols = cols + 1
-            win_width = win_width - #items[cols][1] + 4
-        end
-        if cols > 1 then
-            cols = cols - 1
-        end
-
-        if cols == 1 then -- 只能放在一行时就对齐了
-            for i = size, 1, -1 do
-                lines[i] = {
-                    items[i][1],
-                    highlight = items.highlight,
-                    indent = items.indent,
-                }
-            end
-            return lines, true
-        end
-
-
-        local rows = math.ceil(size / cols)
-        local rest = size % cols
-        if rest == 0 then
-            rest = cols
-        end
-
-        local max_width = get_width(items[1][1])
-        local index = 1 -- 当前操作的字符串下标
-        for i = rows, 1, -1 do -- 当前操作的行号
-            lines[i] = {
-                highlight = items.highlight,
-                indent = items.indent,
-            }
-
-            local item = items[index]
-            -- if not item then
-            --     error('item nil ' .. tostring(index) .. '   rows:' .. tostring(rows) .. vim.inspect(items) )
-            -- end
-
-            item[1] = item[1] .. (' '):rep(max_width - get_width(item[1]))
-            lines[i][1] = items[index]
-            index = index + 1
-        end
-
-
-        for col = 2, cols do
-            max_width = get_width(items[index][1])
-            local _end = col > rest and rows - 1 or rows
-
-            for i = _end, 1, -1 do
-                local item = items[index]
-                item[1] = item[1] .. (' '):rep(max_width - get_width(item[1]))
-
-
-                lines[i][col] = item
-                index = index + 1
-            end
-        end
-
-        return lines, true
-    end
-    return items
-end
-
-local function process(opts)
-    type_check {
-        opts            = { opts, 'table' },
-        ['opts.field']  = { opts.field, 'table', true },
-        ['opts.order']  = { opts.order, 'table' },
-        ['opts.win']    = { opts.win, 'table' },
-        ['opts.engine'] = { opts.engine, 'table' },
-    }
-
-    if opts.field == nil then
-        local lines = { '⚠️   本地没有找到相关释义' }
-        vim.api.nvim_buf_set_lines(opts.bufnr, 0, -1, false, lines)
-        vim.api.nvim_win_set_height(opts.winid, 1)
-        vim.api.nvim_win_set_width(opts.winid, get_width(lines[1]))
-    else
-        local content = require('Trans.component.content'):new(opts)
-        for _, v in ipairs(opts.order) do
-            local component
-            if type(v) == 'table' then
-                component = require("Trans.component." .. 'offline' --[[ opts.engine ]] .. '.' .. v[1]).component(opts.field
-                    , v.max_size)
-            else
-                component = require("Trans.component." .. 'offline' --[[ opts.engine ]] .. '.' .. v).component(opts.field)
-            end
-            if component then
-                for _, items in ipairs(component) do
-
-                    if items.needformat then
-                        local formatted_items, split = format(opts.win.width, items)
-                        if split then
-                            for _, itms in ipairs(formatted_items) do
-                                content:insert(itms)
-                            end
-                        else
-                            content:insert(formatted_items)
-                        end
-                    else
-                        content:insert(items)
-                    end
-
-                    if items.emptyline then
-                        content:insert({ '' })
-                    end
-                end
-            end
-
-        end
-
-        content:attach()
-    end
-
-    vim.api.nvim_buf_set_option(opts.bufnr, 'modifiable', false)
-    vim.api.nvim_buf_set_option(opts.bufnr, 'filetype', 'Trans')
-
-    vim.api.nvim_win_set_option(opts.winid, 'wrap', true)
-    vim.api.nvim_win_set_option(opts.winid, 'winhl', 'Normal:TransCursorWin,FloatBorder:TransCursorBorder')
-    if opts.win.style == 'cursor' then
-        vim.api.nvim_create_autocmd(
-            { 'InsertEnter', 'CursorMoved', 'BufLeave', }, {
-            buffer = 0,
-            once = true,
-            callback = function()
-                if vim.api.nvim_win_is_valid(opts.winid) then
-                    vim.api.nvim_win_close(opts.winid, true)
-                end
-            end,
-        })
-    end
-end
-
-return process
diff --git a/lua/Trans/core/query.lua b/lua/Trans/core/query.lua
deleted file mode 100644
index 5fdb0b0..0000000
--- a/lua/Trans/core/query.lua
+++ /dev/null
@@ -1,43 +0,0 @@
-local type_check = vim.validate
-local query = require("Trans.api").query
-
-local function get_select()
-    local s_start = vim.fn.getpos("v")
-    local s_end = vim.fn.getpos(".")
-    local n_lines = math.abs(s_end[2] - s_start[2]) + 1
-    local lines = vim.api.nvim_buf_get_lines(0, s_start[2] - 1, s_end[2], false)
-    lines[1] = string.sub(lines[1], s_start[3], -1)
-    if n_lines == 1 then
-        lines[n_lines] = string.sub(lines[n_lines], 1, s_end[3] - s_start[3] + 1)
-    else
-        lines[n_lines] = string.sub(lines[n_lines], 1, s_end[3])
-    end
-    return table.concat(lines, '\n')
-end
-
-local query_wrapper = function(opts)
-    type_check {
-        opts = { opts, 'table' },
-        ['opts.method'] = { opts.method, 'string' },
-    }
-
-    local word = ''
-
-    if opts.method == 'input' then
-        ---@diagnostic disable-next-line: param-type-mismatch
-        word = vim.fn.input('请输入您要查询的单词:') -- TODO Use Telescope with fuzzy finder
-
-    elseif opts.method == 'n' then
-        word = vim.fn.expand('<cword>')
-
-    elseif opts.method == 'v' then
-        word = get_select()
-        -- TODO : other method
-    else
-        error('invalid method' .. opts.method)
-    end
-
-    return query(word)
-end
-
-return query_wrapper
diff --git a/lua/Trans/core/translate.lua b/lua/Trans/core/translate.lua
deleted file mode 100644
index 26177a4..0000000
--- a/lua/Trans/core/translate.lua
+++ /dev/null
@@ -1,110 +0,0 @@
--- Default conf
-local conf = require("Trans.conf.loader").loaded_conf
-local core = require("Trans.core")
-
-
-local function get_opts(opts)
-
-    local mode = vim.api.nvim_get_mode().mode
-    local default_conf = {
-        method = mode,
-        engine = conf.base.engine,
-        win = {
-            style = conf.style.ui[opts.method or mode],
-            width = conf.style.window.cursor.width,
-            height = conf.style.window.cursor.height
-        },
-    }
-
-    if type(opts.engine) == 'string' then
-        opts.engine = { opts.engine }
-    end
-
-
-    if opts.win then
-        local width, height = opts.win.width, opts.win.height
-        if width and width > 0 and width <= 1 then
-            opts.win.width = math.floor(vim.o.columns * width)
-        end
-
-        if height and height > 0 and height <= 1 then
-            opts.win.height = math.floor(vim.o.lines * opts.win.height)
-        end
-    end
-
-    return vim.tbl_extend('force', default_conf, opts)
-end
-
--- EXAMPLE :
--- require('Trans').translate({
---     method = 'input', -- 不填则自动判断mode获取查询的单词
---     engine = { -- 异步查询所有的引擎, 按照列表
---         'offline',
---         'youdao',
---         'baidu'
---     },
---     -- win = 'cursor'
---     win = {
---         style = 'cursor',
---         height = 50,
---         width = 30,
---     }
--- })
-
-
-
-local function create_win(win)
-    local bufnr = vim.api.nvim_create_buf(false, true)
-
-    local is_float = win.style == 'float'
-
-    local win_opts = {
-        relative = is_float and 'editor' or 'cursor',
-        width = win.width,
-        height = win.height,
-        style = 'minimal',
-        border = conf.style.window[win.style].border,
-        title = 'Trans',
-        title_pos = 'center',
-        focusable = true,
-        zindex = 100,
-    }
-
-    if is_float then
-        win_opts.row = math.floor((vim.o.lines - win_opts.height - vim.o.cmdheight) / 2)
-        win_opts.col = math.floor((vim.o.columns - win_opts.width) / 2)
-    else
-        win_opts.row = 2
-        win_opts.col = 2
-    end
-
-
-    local winid = vim.api.nvim_open_win(bufnr, is_float, win_opts)
-    return bufnr, winid
-end
-
-local function translate(opts)
-    vim.validate {
-        opts = { opts, 'table', true }
-    }
-
-    --- TODO : 异步请求
-    -- NOTE : 这里只处理了本地数据库查询
-    opts = get_opts(opts or {})
-    local field = core.query(opts)
-
-    local bufnr, winid = create_win(opts.win)
-
-    local proc_opts = {
-        bufnr = bufnr,
-        winid = winid,
-        win = opts.win,
-        field = field,
-        order = conf.order['offline'],
-        engine = { 'offline' },
-    }
-
-    core.process(proc_opts)
-end
-
-return translate
diff --git a/lua/Trans/core/window.lua b/lua/Trans/core/window.lua
new file mode 100644
index 0000000..ac64a6b
--- /dev/null
+++ b/lua/Trans/core/window.lua
@@ -0,0 +1,94 @@
+local M    = {}
+local api  = vim.api
+local conf = require('Trans').conf
+M.id       = 0
+M.bufnr    = 0
+M.ns       = api.nvim_create_namespace('Trans')
+
+
+function M.init(view)
+    vim.validate {
+        view = { view, 's' }
+    }
+
+    M.view = view
+    M.float = view == 'float'
+    M.height = conf.window[view].height
+    M.width = conf.window[view].width
+
+    local opts = {
+        relative  = M.float and 'editor' or 'cursor',
+        width     = M.width,
+        height    = M.height,
+        style     = 'minimal',
+        border    = conf.window.border,
+        title     = 'Trans',
+        title_pos = 'center',
+        focusable = true,
+        zindex    = 100,
+    }
+
+    if M.float then
+        opts.row = math.floor((vim.o.lines - M.height) / 2)
+        opts.col = math.floor((vim.o.columns - M.width) / 2)
+    else
+        opts.row = 2
+        opts.col = 2
+    end
+
+    M.bufnr = api.nvim_create_buf(false, true)
+    M.id = api.nvim_open_win(M.bufnr, M.float, opts)
+end
+
+M.draw = function(content)
+    api.nvim_buf_set_lines(M.bufnr, 0, -1, false, content.lines)
+
+    if content.highlights then
+        for l, _hl in pairs(content.highlights) do
+            for _, hl in ipairs(_hl) do
+                api.nvim_buf_add_highlight(M.bufnr, M.ns, hl.name, l - 1, hl._start, hl._end) -- zero index
+            end
+        end
+    end
+
+    local len = #content.lines
+    if M.height > len then
+        api.nvim_win_set_height(M.id, len + 1)
+    end
+
+
+    api.nvim_buf_set_option(M.bufnr, 'modifiable', false)
+    api.nvim_buf_set_option(M.bufnr, 'filetype', 'Trans')
+    api.nvim_win_set_option(M.id, 'wrap', not M.float)
+    api.nvim_win_set_option(M.id, 'winhl', 'Normal:TransCursorWin,FloatBorder:TransCursorBorder')
+
+    if M.float then
+        vim.keymap.set('n', 'q', function()
+            if api.nvim_win_is_valid(M.id) then
+                api.nvim_win_close(M.id, true)
+            end
+        end, { buffer = M.bufnr, silent = true })
+
+    else
+        -- TODO : set keymaps for window
+        M.auto_close()
+    end
+end
+
+
+M.auto_close = function()
+    api.nvim_create_autocmd(
+        { 'InsertEnter', 'CursorMoved', 'BufLeave', }, {
+        buffer = 0,
+        once = true,
+        callback = function()
+            if api.nvim_win_is_valid(M.id) then
+                api.nvim_win_close(M.id, true)
+            end
+        end,
+    })
+
+end
+
+
+return M
diff --git a/lua/Trans/init.lua b/lua/Trans/init.lua
index 317547b..c23a858 100644
--- a/lua/Trans/init.lua
+++ b/lua/Trans/init.lua
@@ -1,12 +1,84 @@
 local M = {}
 
+M.conf = {
+    view = {
+        input = 'hover',
+        n = 'hover',
+        v = 'hover',
+    },
+    window = {
+        border = 'rounded',
+        hover = {
+            width = 36,
+            height = 23,
+        },
+        float = {
+            width = 0.8,
+            height = 0.8,
+        },
+    },
+
+    order = {
+        -- offline = {
+        'title',
+        'tag',
+        'pos',
+        'exchange',
+        -- 'translation',
+        -- NOTE :如果你想限制某个组件的行数，可以设置max_size
+        -- { 'Definition', max_size = 4 },
+        -- },
+        -- online = {
+        --     -- TODO
+        -- },
+    },
+    icon = {
+        star = '⭐',
+        notfound = '❔',
+        yes = '✔️',
+        no = '❌'
+    },
+    db_path = '$HOME/.vim/dict/ultimate.db',
+    -- TODO :
+    -- engine = {
+    --     -- TODO
+    --     'offline',
+    -- }
+    -- map = {
+    --     -- TODO
+    -- },
+    -- history = {
+    --     -- TOOD
+    -- }
+
+    -- TODO  add online translate engine
+    -- online_search = {
+    --     enable = false,
+    --     engine = {},
+    -- }
+
+    -- TODO register word
+}
+
+
 M.setup = function(opts)
-    require('Trans.conf.loader').load_conf(opts)
+    if opts then
+        M.conf = vim.tbl_deep_extend('force', M.conf, opts)
+    end
+    local window = M.conf.window
+    assert(window.hover.width > 1 and window.hover.height > 1)
+    assert(0 < window.float.width and window.float.width <= 1)
+    assert(0 < window.float.height and window.float.height <= 1)
+
+    window.float.height = math.floor((vim.o.lines - vim.o.cmdheight - 1) * window.float.height)
+    window.float.width = math.floor(vim.o.columns * window.float.width)
+
+    -- TODO : replace the height and width for float options
+    M.translate = require('Trans.core').translate
     require("Trans.setup")
-    M.translate = require('Trans.core.translate')
 end
 
-M.translate = nil
-M.augroup = vim.api.nvim_create_augroup('Trans', {clear = true})
+
+M.augroup = vim.api.nvim_create_augroup('Trans', { clear = true })
 
 return M
diff --git a/lua/Trans/setup.lua b/lua/Trans/setup.lua
index 1fa8aef..840f4e7 100644
--- a/lua/Trans/setup.lua
+++ b/lua/Trans/setup.lua
@@ -2,24 +2,59 @@ if vim.fn.executable('sqlite3') ~= 1 then
     error('Please check out sqlite3')
 end
 
-vim.api.nvim_create_user_command('Translate', function ()
+vim.api.nvim_create_user_command('Translate', function()
     require("Trans").translate()
 end, {
     desc = '  单词翻译',
 })
 
-vim.api.nvim_create_user_command('TranslateInput', function ()
-    require("Trans").translate {
-        method = 'input',
-    }
-end, {desc = '  搜索翻译'})
+vim.api.nvim_create_user_command('TranslateInput', function()
+    require("Trans").translate('input')
+end, { desc = '  搜索翻译' })
 
--- TODO 
+
+local highlights = {
+    TransWord = {
+        fg = '#7ee787',
+        bold = true,
+    },
+    TransPhonetic = {
+        link = 'Linenr'
+    },
+    TransRef = {
+        fg = '#75beff',
+        bold = true,
+    },
+    TransTag = {
+        fg = '#e5c07b',
+    },
+    TransExchange = {
+        link = 'TransTag',
+    },
+    TransPos = {
+        link = 'TransTag',
+    },
+    TransTranslation = {
+        link = 'TransWord',
+    },
+    TransDefinition = {
+        -- fg = '#bc8cff',
+        link = 'Moremsg',
+    },
+    TransCursorWin = {
+        link = 'Normal',
+    },
+
+    TransCursorBorder = {
+        link = 'FloatBorder',
+    }
+}
+
+-- TODO
 -- vim.api.nvim_create_user_command('TranslateHistory', require("Trans.core").query_input, {
 --     desc = '翻译输入的单词',
 -- })
 
-local highlights = require("Trans.conf.loader").loaded_conf.ui.highlight
 for highlight, opt in pairs(highlights) do
     vim.api.nvim_set_hl(0, highlight, opt)
 end
diff --git a/lua/Trans/util/test/format.lua b/lua/Trans/util/test/format.lua
index 62df1fe..12d799b 100644
--- a/lua/Trans/util/test/format.lua
+++ b/lua/Trans/util/test/format.lua
@@ -1,186 +1,188 @@
-local M = {}
--- local type_check = require("Trans.util.debug").type_check
 
 
--- NOTE :中文字符及占两个字节宽，但是在lua里是3个字节长度
--- 为了解决中文字符在lua的长度和neovim显示不一致的问题
-function string:width()
-    return vim.fn.strdisplaywidth(self)
-end
-
--- 各种风格的基础宽度
-local style_width = {
-    -- float = require("Trans.conf.window").float.width, -- NOTE : need window parsed conf
-    cursor = 60,
-}
-local s_to_b = true -- 从小到大排列
-
-local m_fields     -- 待格式化的字段
-local m_indent     -- 每行的行首缩进
-local m_tot_width     -- 所有字段加起来的长度(不包括缩进和间隔)
-local m_interval   -- 每个字段的间隔
-local m_win_width  -- 需要被格式化窗口的高度
-local m_item_width -- 每个字段的宽度
-local m_size
-
-local function caculate_format()
-    local width = m_win_width - m_item_width[1]
-    local cols = 0
-    for i = 2, #m_fields do
-        width = width - m_item_width[i] - m_interval
-        if width < 0 then
-            cols = i - 1
-            break
-        else
-            cols = i
-        end
-    end
-
-    return math.ceil(#m_fields / cols), cols
-end
-
-local function format_to_line()
-    local line = m_fields[1]
-    if m_size == 1 then
-        --- Center Align
-        local space = math.floor((m_win_width - m_item_width[1]) / 2)
-        line = (' '):rep(space) .. line
-    else
-        local space = math.floor((m_win_width - m_tot_width) / m_size - 1)
-        for i = 2, m_size do
-            line = line .. (' '):rep(space) .. m_fields[i]
-        end
-    end
-    return line
-end
-
-
-local function sort_tables()
-    table.sort(m_item_width, function (a, b)
-        return a > b
-    end)
-
-    table.sort(m_fields, function (a, b)
-        return a:width() > b:width()
-    end)
-end
-
-
-local function format_to_multilines()
-    local lines = {}
-    sort_tables()
-
-    --- NOTE ： 计算应该格式化成多少行和列
-    local rows, cols = caculate_format()
-    local rest = #m_fields % cols
-    if rest == 0 then
-        rest = cols
-    end
-
-    local s_width = m_item_width[1] -- 列中最宽的字符串宽度
-    -- NOTE : 第一列不需要加空格
-    for i = 1, rows do
-        local idx = s_to_b and rows - i + 1 or i
-        local space = (' '):rep(s_width - m_item_width[i])
-        lines[idx] = m_fields[i] .. space -- NOTE  由大到小
-    end
-
-    local index = rows + 1                 -- 最宽字符的下标
-    local interval = (' '):rep(m_interval) -- 每个字符串间的间隙
-
-    for j = 2, cols do -- 以列为单位遍历
-        s_width = m_item_width[index]
-        local stop = (j > rest and rows - 1 or rows)
-        for i = 1, stop do
-            local idx   = s_to_b and stop - i + 1 or i            -- 当前操作的行数
-            local item  = index + i - 1                           -- 当前操作的字段数
-            local space = (' '):rep(s_width - m_item_width[item]) -- 对齐空格
-
-            lines[idx] = lines[idx] .. interval .. m_fields[item] .. space -- NOTE  从大到小
-        end
-        index = index + stop -- 更新最宽字符的下标
-    end
-
-    return lines
-end
-
-
-local function get_formatted_lines()
-    local lines = {}
-    -- NOTE : 判断能否格式化成一行
-    local line_size = m_tot_width + (#m_fields * m_interval)
-    if line_size > m_win_width then
-        lines = format_to_multilines()
-    else
-        lines[1] = format_to_line()
-    end
-
-    -- NOTE :进行缩进
-    if m_indent > 0 then
-        for i, v in ipairs(lines) do
-            lines[i] = (' '):rep(m_indent) .. v
-        end
-    end
-    return lines
-end
-
----将组件格式化成相应的vim支持的lines格式
----@param style string 窗口的风格
----@param fields string[] 需要格式化的字段
----@param indent? number 缩进的长度
----@return string[] lines 便于vim.api.nvim_buf_set_lines
-M.to_lines = function(style, fields, indent)
-
-    local length = 0
-    local width = 0
-    local item_size = {}
-    for i, v in ipairs(fields) do
-        width = v:width()
-        item_size[i] = width
-        length = length + width
-    end
-
-    m_indent = indent or 0
-    m_win_width  = style_width[style] - m_indent
-    m_fields = fields
-    m_tot_width = length
-    m_item_width = item_size
-    m_interval = m_win_width > 50 and 6 or 4
-    m_size = #fields
-
-    return get_formatted_lines()
-end
-
-local test = {
-    'isjlk测试dj',
-    '测试一下..',
-}
-
-local lines = M.to_lines('cursor', test)
-
--- print('===========================================')
+-- local M = {}
+-- -- local type_check = require("Trans.util.debug").type_check
+--
+--
+-- -- NOTE :中文字符及占两个字节宽，但是在lua里是3个字节长度
+-- -- 为了解决中文字符在lua的长度和neovim显示不一致的问题
+-- function string:width()
+--     return vim.fn.strdisplaywidth(self)
+-- end
+--
+-- -- 各种风格的基础宽度
+-- local style_width = {
+--     -- float = require("Trans.conf.window").float.width, -- NOTE : need window parsed conf
+--     cursor = 60,
+-- }
+-- local s_to_b = true -- 从小到大排列
+--
+-- local m_fields     -- 待格式化的字段
+-- local m_indent     -- 每行的行首缩进
+-- local m_tot_width     -- 所有字段加起来的长度(不包括缩进和间隔)
+-- local m_interval   -- 每个字段的间隔
+-- local m_win_width  -- 需要被格式化窗口的高度
+-- local m_item_width -- 每个字段的宽度
+-- local m_size
+--
+-- local function caculate_format()
+--     local width = m_win_width - m_item_width[1]
+--     local cols = 0
+--     for i = 2, #m_fields do
+--         width = width - m_item_width[i] - m_interval
+--         if width < 0 then
+--             cols = i - 1
+--             break
+--         else
+--             cols = i
+--         end
+--     end
+--
+--     return math.ceil(#m_fields / cols), cols
+-- end
+--
+-- local function format_to_line()
+--     local line = m_fields[1]
+--     if m_size == 1 then
+--         --- Center Align
+--         local space = math.floor((m_win_width - m_item_width[1]) / 2)
+--         line = (' '):rep(space) .. line
+--     else
+--         local space = math.floor((m_win_width - m_tot_width) / m_size - 1)
+--         for i = 2, m_size do
+--             line = line .. (' '):rep(space) .. m_fields[i]
+--         end
+--     end
+--     return line
+-- end
+--
+--
+-- local function sort_tables()
+--     table.sort(m_item_width, function (a, b)
+--         return a > b
+--     end)
+--
+--     table.sort(m_fields, function (a, b)
+--         return a:width() > b:width()
+--     end)
+-- end
+--
+--
+-- local function format_to_multilines()
+--     local lines = {}
+--     sort_tables()
+--
+--     --- NOTE ： 计算应该格式化成多少行和列
+--     local rows, cols = caculate_format()
+--     local rest = #m_fields % cols
+--     if rest == 0 then
+--         rest = cols
+--     end
+--
+--     local s_width = m_item_width[1] -- 列中最宽的字符串宽度
+--     -- NOTE : 第一列不需要加空格
+--     for i = 1, rows do
+--         local idx = s_to_b and rows - i + 1 or i
+--         local space = (' '):rep(s_width - m_item_width[i])
+--         lines[idx] = m_fields[i] .. space -- NOTE  由大到小
+--     end
+--
+--     local index = rows + 1                 -- 最宽字符的下标
+--     local interval = (' '):rep(m_interval) -- 每个字符串间的间隙
+--
+--     for j = 2, cols do -- 以列为单位遍历
+--         s_width = m_item_width[index]
+--         local stop = (j > rest and rows - 1 or rows)
+--         for i = 1, stop do
+--             local idx   = s_to_b and stop - i + 1 or i            -- 当前操作的行数
+--             local item  = index + i - 1                           -- 当前操作的字段数
+--             local space = (' '):rep(s_width - m_item_width[item]) -- 对齐空格
+--
+--             lines[idx] = lines[idx] .. interval .. m_fields[item] .. space -- NOTE  从大到小
+--         end
+--         index = index + stop -- 更新最宽字符的下标
+--     end
+--
+--     return lines
+-- end
+--
+--
+-- local function get_formatted_lines()
+--     local lines = {}
+--     -- NOTE : 判断能否格式化成一行
+--     local line_size = m_tot_width + (#m_fields * m_interval)
+--     if line_size > m_win_width then
+--         lines = format_to_multilines()
+--     else
+--         lines[1] = format_to_line()
+--     end
+--
+--     -- NOTE :进行缩进
+--     if m_indent > 0 then
+--         for i, v in ipairs(lines) do
+--             lines[i] = (' '):rep(m_indent) .. v
+--         end
+--     end
+--     return lines
+-- end
+--
+-- ---将组件格式化成相应的vim支持的lines格式
+-- ---@param style string 窗口的风格
+-- ---@param fields string[] 需要格式化的字段
+-- ---@param indent? number 缩进的长度
+-- ---@return string[] lines 便于vim.api.nvim_buf_set_lines
+-- M.to_lines = function(style, fields, indent)
+--
+--     local length = 0
+--     local width = 0
+--     local item_size = {}
+--     for i, v in ipairs(fields) do
+--         width = v:width()
+--         item_size[i] = width
+--         length = length + width
+--     end
+--
+--     m_indent = indent or 0
+--     m_win_width  = style_width[style] - m_indent
+--     m_fields = fields
+--     m_tot_width = length
+--     m_item_width = item_size
+--     m_interval = m_win_width > 50 and 6 or 4
+--     m_size = #fields
+--
+--     return get_formatted_lines()
+-- end
+--
+-- local test = {
+--     'isjlk测试dj',
+--     '测试一下..',
+-- }
+--
+-- local lines = M.to_lines('cursor', test)
+--
+-- -- print('===========================================')
+-- -- for _, v in ipairs(test) do
+-- --     print(v .. '                width:', v:width())
+-- -- end
+-- -- print('===========================================')
+-- -- print('===========================================')
+-- -- print('===========================================')
+--
+-- -- print('type is :' .. type(lines) .. '  size is :' .. #lines[1])
+--
 -- for _, v in ipairs(test) do
---     print(v .. '                width:', v:width())
+--     print(v:width())
 -- end
--- print('===========================================')
--- print('===========================================')
--- print('===========================================')
-
--- print('type is :' .. type(lines) .. '  size is :' .. #lines[1])
-
-for _, v in ipairs(test) do
-    print(v:width())
-end
-
--- lines = M.to_lines('cursor', {
---     'ajlkasj',
---     'jklasjldajjnn测试',
---     '测试将安得拉蓝色',
---     'cool this',
--- }, 4)
-
--- for _, v in ipairs(lines) do
---     print(v)
--- end
-return M
-
+--
+-- -- lines = M.to_lines('cursor', {
+-- --     'ajlkasj',
+-- --     'jklasjldajjnn测试',
+-- --     '测试将安得拉蓝色',
+-- --     'cool this',
+-- -- }, 4)
+--
+-- -- for _, v in ipairs(lines) do
+-- --     print(v)
+-- -- end
+-- return M
+--
diff --git a/lua/Trans/util/test/test.lua b/lua/Trans/util/test/test.lua
index 72af591..cc11b32 100644
--- a/lua/Trans/util/test/test.lua
+++ b/lua/Trans/util/test/test.lua
@@ -1,18 +1,12 @@
-local a = {
-    'test1',
-    'test2',
-    'test3'
-}
+-- 记录开始时间
+local starttime = os.clock(); --> os.clock()用法
 
-
-local function test(tmp)
-    tmp = {
-        'bbbbbb'
-    }
+for i = 1, 10, 2 do
+    print(i)
 end
 
 
-test(a)
-for i, v in ipairs(a) do
-    print(v)
-end
+-- 记录结束时间
+local endtime = os.clock(); --> os.clock()用法
+print(string.format("end time   : %.4f", endtime));
+print(string.format("cost time  : %.4f", endtime - starttime));