Angularjs自定义指令实现三级联动效果，先上图
代码
<html lang=zh-CN ng-app=myApp>
<head>
<meta charset=utf-8>
<meta http-equiv=X-UA-Compatible content=IE=edge>
<meta name=viewport content=width=device-width, initial-scale=1>
[removed][removed]
[removed]</scrip
