angular简单二级联动

<select ng-init="cheng=pros[0]"ng-model="cheng" ng-options="p.pro for p in pros" ng-change="gai(cheng)">

</select>
<select ng-init="shi=city[0]" ng-model="shi" ng-options="o for o in city">

</select>

<script>

var app= angular.module("myapp",[]);
app.controller("myctrl",function($scope,$http){
$http.get("http://result.eolinker.com/rR1VBtT56a6bb220c10b3d44b65b4787a8aec03c4ec32ce?uri=monthTest").then(function(response){
$scope.names=response.data;

});

//自己定义的二级数组（如果网络请求 将$scope.city=$scope.pros[0].child删除即可）

$scope.pros=[{"pro":"北京","child":["东城","西城","西二旗"]},{"pro":"河南","child":["郑州","洛阳","驻马店"]}];

//给city赋默认值

$scope.city=$scope.pros[0].child;

//二级联动改变事件
$scope.gai=function(sh){
$scope.city=sh.child;
}

</script>