例如要在文章里讲语法高亮的写法，可以像下面写
```` //这里写4个反引号
``` javascript
var aaa = function(){
let foo = 'foo'
let bar = 'bar'
console.log(foo + bar) // print foobar
console.log(`google is a searche engine ${foo}`)
}
```
```` //这里用4个反引号关闭
效果
blablabla... ... 在markdown中，你可以这样写，实现代码块效果，还支持语法高亮
``` javascript var aaa = function(){ let foo = 'foo' let bar = 'bar' console.log(foo + bar) // print foobar console.log(`google is a searche engine ${foo}`) } ```最终代码块的渲染效果如下
var aaa = function(){ let foo = 'foo' let bar = 'bar' console.log(foo + bar) // print foobar console.log(`google is a searche engine ${foo}`) }blablabla... ...
