markdown里对代码块的引用语法是三个撇[ ``` ],在其后可增加代码名称,比如java,js等标记该部分代码的类型.之后在页面展现的时候就可以高亮显示关键字了.

比如下面这段代码:

```javascript
var xiaoming = {
  name: ‘小明’,
  birth: 1990,
  age: function () {
    var y = new Date().getFullYear();
    return y - this.birth;
  }
};
```

var xiaoming = {
    name: '小明',
    birth: 1990,
    age: function () {
        var y = new Date().getFullYear();
        return y - this.birth;
    }
};

整理了一下表格,看看markdown到底支持多少种语言高亮显示.

名称	关键字
JavaScript	js , jscript , javascript
Java	java
PHP	php
text	text , plain
Python	py , python
Shell	bash , shell
C	cpp , c
C#	c# , c-sharp , csharp
CSS	css
XML	xml , xhtml , xslt , html
SASS&SCSS	sass , scss
Scala	scala
SQL	sql
Visual Basic	vb , vbnet
Objective C	objc , obj-c
Ruby	ruby , rails , ror , rb
AppleScript	applescript
ColdFusion	coldfusion , cf
Delphi	delphi , pascal , pas
diff&patch	diff patch
Erlang	erl , erlang
Groovy	groovy
JavaFX	jfx , javafx
Perl	perl , pl , Perl
F#	f# f-sharp , fsharp
R	r , s , splus
matlab	matlab
swift	swift
GO	go , golang