将Markdown文档转换为HTML显示
在程序的中，我结合了bootstrap的样式，所以稍微更改了下模块marked的源码，这也是为了显示更好。我的测试md文档放在了，public/doc下。这边用了一个代码高亮的插件：highlight.js，你也可以用一些别的。
本应用是采用 node.js + Express 搭建的
npm install marked --save
const express = require('express');
const router = express.Router();
const fs = require('fs');
const marked = require('marked');
router.get("/:docName", function(req, res, next){
console.log('name:' + req.params.docName);
fs.readFile(__dirname+'/../public/doc/'+ req.params.docName +'.md', function(err, data){
if(err){
console.log("文件不存在！");
res.send("文件不存在！");
}else{
console.log(data);
htmlStr = marked(data.toString());
res.render('doc', {doc: htmlStr});
}
});
});
module.exports = router;<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
<link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/default.min.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/highlight.min.js"></script>
<script>hljs.initHighlightingOnLoad();</script>
<link rel="stylesheet" href="/css/doc.css">
</head>
<body>
<nav class="navbar navbar-default navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<a class="navbar-brand" href="#"> Markdown</a>
</div>
<button type="button" class="btn btn-primary navbar-btn navbar-right" id="download"><span class="glyphicon glyphicon-download-alt"></span> Download</button>
</div>
</nav>
<div class="container" id="doc-page">
<%- doc %>
</div>
<div class="footer">
<span>© 2017 Gavin</span>
</div>
</body>
</script>
</html>只给出路由部分
const doc = require('./routes/doc');
app.use('/doc', doc);
