调整路由，增加默认readme.md的处理

@@ -9,7 +9,7 @@ if (!target) {
   process.exit(1);
   process.exit(1);
 }
 }
 
 
-const mdview = require('../lib/mdview')(),
+const mdview = new (require('../lib/mdview')),
   path = require('path');
   path = require('path');
 
 
 const filename = path.resolve(process.cwd(), target);
 const filename = path.resolve(process.cwd(), target);

 "use strict";
 "use strict";
 const fs = require('fs');
 const fs = require('fs');
 
 
-function MarkdownIt(opts) {
-  if (!(this instanceof MarkdownIt)) {
-    return new MarkdownIt(opts);
-  }
+function MarkdownIt (opts) {
+    if (!(this instanceof MarkdownIt)) {
+        return new MarkdownIt(opts);
+    }
 
 
-  opts = opts || {};
+    opts = opts || {};
 
 
-  var md = require('markdown-it')(opts.options);
+    const md = require('markdown-it')(opts.options);
 
 
-  this.renderFile = function(filename) {
-    if (!filename) {
-      throw new Error('filename can not be null!')
-    }
+    this.renderFile = function (filename) {
+        if (!filename) {
+            throw new Error('filename can not be null!')
+        }
 
 
-    try{
-      var content = fs.readFileSync(filename).toString();
-      var result = md.render(content);
-    } catch(e) {
-      result = md.render(`
-## 404
+        let result;
+        try {
+            const content = fs.readFileSync(filename).toString();
+            result = md.render(content);
+        } catch (e) {
+            result = md.render(`
+# 404
 *文件找不到！*
 *文件找不到！*
 `)
 `)
-    }
+        }
 
 
-    return result;
-  }
+        return result;
+    }
 }
 }
 
 
 module.exports = MarkdownIt;
 module.exports = MarkdownIt;

+# 标题：如何编写帮助文档（H1）
+
+> 每个描述目标简历一个子目录，在子目录下建立readme.md编写当前文档，本文档内需要的图片也存放在此目录下。
+
+## 章节：文章的主要结构（H2）
+
+### 小节：针对每个章节的具体描述（H3）
+
+#### 段落：小节内需要分层次描述时使用（H4）
+
+##### 节点：段落内需要重点提出时（H5）
+
+正文：每个文件用一个H1作为标题，后续章节可以用到H2-H5
+
+可以使用截图描述操作界面
+
+![图片](alg.png)
+
+对于需要特殊指出的词语可以使用`反引号`
+
+**或者使用粗体重点提醒**
+
+> *在引用内可以使用斜体*
+
+也可用列表描述
+
+- 使用无序列表
+- 使用有序列表
+
+
+
+通常很少会用到表格
+
+| 标题1  | 标题2  | 标题3  |
+| ---- | ---- | ---- |
+| 内容1  |      |      |
+|      | 内容2  |      |
+|      |      | 内容3  |
+
+中间可以用到分割线（HR）
+
+----
+
+分割线的上下有足够的空间
+

@@ -16,7 +16,7 @@ dog's back.
 ### Header 3
 ### Header 3
 
 
 > This is a blockquote.
 > This is a blockquote.
-> 
+>
 > This is the second paragraph in the blockquote.
 > This is the second paragraph in the blockquote.
 >
 >
 > ## This is an H2 in a blockquote
 > ## This is an H2 in a blockquote
@@ -41,7 +41,12 @@ Some of these words <em>are emphasized also</em>.</p>
 Or, if you prefer, <strong>use two underscores instead</strong>.</p>
 Or, if you prefer, <strong>use two underscores instead</strong>.</p>
 ```
 ```
 
 
+----
+
+
+
 ### LISTS
 ### LISTS
+
 Unordered (bulleted) lists use asterisks, pluses, and hyphens (*, +, and -) as list markers. These three markers are interchangable; this:
 Unordered (bulleted) lists use asterisks, pluses, and hyphens (*, +, and -) as list markers. These three markers are interchangable; this:
 
 
 *   Candy.
 *   Candy.

@@ -14,8 +14,8 @@
   "author": "lintry <shenlin00@gmail.com>",
   "author": "lintry <shenlin00@gmail.com>",
   "license": "MIT",
   "license": "MIT",
   "dependencies": {
   "dependencies": {
-    "express": "^4.14.0",
-    "github-markdown-css": "^2.4.1",
-    "markdown-it": "^8.0.1"
+    "express": "^4.16.2",
+    "github-markdown-css": "^2.10.0",
+    "markdown-it": "^8.4.0"
   }
   }
 }
 }

-var express = require('express')
-var app = express()
+const express = require('express');
+const app = express();
 
 
-const mdview = require('./lib/mdview')(),
-  path = require('path');
+const mdview = new (require('./lib/mdview')),
+    path = require('path');
 
 
-const MARKDOWN_FILE_BASE = process.cwd();
+const MARKDOWN_FILE_BASE = path.resolve(process.cwd(), 'md');
 
 
 app.use(express.static(__dirname + '/themes'));
 app.use(express.static(__dirname + '/themes'));
+app.use(express.static(MARKDOWN_FILE_BASE));
 
 
-function sendTemplate(filename, theme) {
-  let file = path.resolve(MARKDOWN_FILE_BASE, filename);
-  var result = mdview.renderFile(file);
-  theme = theme || 'github-markdown';
-  return `
+function sendTemplate (filename, theme) {
+    //默认md
+    if (!filename || filename.match(/.+\/$/)) {
+        filename = (filename || '') + 'readme.md'
+    }
+    let file = path.resolve(MARKDOWN_FILE_BASE, filename);
+    if (!path.parse(file).ext) {
+        //追加后缀
+        file += '.md'
+    }
+    let result = mdview.renderFile(file);
+    theme = theme || 'metro-lake';
+    return `
     <!DOCTYPE html>
     <!DOCTYPE html>
     <html>
     <html>
         <head>
         <head>
@@ -31,17 +40,11 @@ function sendTemplate(filename, theme) {
 `;
 `;
 }
 }
 
 
-app.get('/', function (req, res) {
-  var query = req.query;
-  res.send(sendTemplate('readme.md', query.t));
-})
-
-app.get('/*.md', function(req, res){
-  var url = req.url, urls = url.match(/^\/([\/\w]+\.md)/), query = req.query;
-  res.send(sendTemplate(urls[1]||'404.md', query.t));
-  console.log(query)
+app.get('/**', function (req, res) {
+    let url = req.url, urls = url.match(/^\/([\/\w]+)/) || [], query = req.query;
+    res.send(sendTemplate(urls[1], query.t));
 })
 })
 
 
 const PORT = 3000;
 const PORT = 3000;
-app.listen(PORT)
+app.listen(PORT);
 console.info(`Server is started up by binding ${PORT}. Visit http://localhost:${PORT}`);
 console.info(`Server is started up by binding ${PORT}. Visit http://localhost:${PORT}`);

+/*---------------------------------------------------
+    LESS Elements 0.9
+  ---------------------------------------------------
+    A set of useful LESS mixins
+    More info at: http://lesselements.com
+  ---------------------------------------------------*/
+/**
+ * https://github.com/rhiokim/markdown-css
+ * made by rhio.kim
+ */
+::before, ::after, * {
+    box-sizing: border-box;
+}
+
+.metro-lake {
+    font-family: system, -apple-system, BlinkMacSystemFont,
+    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "STHeiti", "SimSun",
+    "Lucida Grande", "Lucida Sans Unicode", "Lucida Sans", 'Segoe UI',
+    AppleSDGothicNeo-Medium, "Malgun Gothic", Verdana, Tahoma, "Helvetica Neue", Helvetica, Arial, sans-serif;
+    padding: 0;
+    color: #333;
+    font-size: 0.875rem;
+    background: #ffffff;
+    -webkit-font-smoothing: antialiased;
+    word-wrap: break-word;
+    -webkit-hyphens: auto;
+    -ms-hyphens: auto;
+    hyphens: auto;
+}
+
+.metro-lake a {
+    color: #3269a0;
+}
+
+.metro-lake a:hover {
+    color: #4183c4;
+}
+
+.metro-lake blockquote {
+    border-left: 2px solid #666;
+    padding: 0 15px;
+    font-style: italic;
+    color: #777;
+}
+
+.metro-lake h1,
+.metro-lake h2,
+.metro-lake h3,
+.metro-lake h4,
+.metro-lake h5 {
+    font-weight: 400;
+    color: #444;
+    letter-spacing: 2px;
+}
+
+.metro-lake h1 {
+    text-align: center;
+    line-height: 2rem;
+    font-size: 2rem;
+}
+
+.metro-lake h2 {
+    font-size: 1.4rem;
+    border-bottom: 1px solid #bbb;
+    line-height: 1.6rem;
+    padding-bottom: 0.8rem;
+    text-align: center;
+}
+
+.metro-lake h2:before {
+    content: '══';
+    font-weight: 100;
+    letter-spacing: -1px;
+    padding-right: 1rem;
+    color: #888
+}
+.metro-lake h2:after {
+    content: '══';
+    font-weight: 100;
+    letter-spacing: -1px;
+    padding-left: 1rem;
+    color: #888
+}
+
+.metro-lake blockquote h2:before {
+    content: '';
+    padding-right: 0;
+}
+
+.metro-lake h5 {
+    font-weight: bold;
+}
+.metro-lake h6 {
+    color: #666;
+}
+
+.metro-lake hr {
+    border-top: none;
+    border-right: none;
+    border-bottom: 1px solid;
+    border-left: none;
+    border-color: #ddd;
+    margin: 10px 0 10px;
+}
+
+.metro-lake p {
+    line-height: 1.5rem;
+}
+
+.metro-lake p > code {
+    color: #777777;
+    font-size: 15px;
+    padding: 3px;
+}
+
+.metro-lake pre > code {
+    font-size: 14px;
+    letter-spacing: -1px;
+    font-weight: normal;
+}
+
+.metro-lake strong {
+    font-weight: 600;
+}
+
+.metro-lake table {
+    width: 100%;
+    background-color: #fafafa;
+}
+
+.metro-lake table tr th,
+.metro-lake table tr td {
+    border: 1px solid #e6e6e6;
+}
+
+.metro-lake table tr:nth-child(2n) {
+    background-color: #f2f2f2;
+}
+
+/**
+ * after less
+ */
+/*
+.haroopad {
+
+  img {
+    .bordered(@border-color, @border-color, @border-color, @border-color);
+    .rounded(3px);
+    .box-shadow(0 0 7px darken(@border-color, 18%));
+
+    &:hover {
+	    -webkit-animation-duration: 1s;
+	    -webkit-animation-delay: .2s;
+    	.pulse;
+    }
+  }
+
+  h1 {
+    -webkit-animation-duration: .5s;
+    -webkit-animation-delay: .2s;
+  	.tada;
+  }
+
+  &>ul {
+  	&>li {
+	    -webkit-animation-duration: .5s;
+	    -webkit-animation-delay: .2s;
+	  	.fadeInLeft;
+	  }
+  }
+
+}
+*/