angularJs secondary linkage
The content of this article is angularJs secondary linkage. Now I share it with everyone. Friends in need can also refer to this content.
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script type="text/javascript" src="js/angular.min.js" ></script>
<script type="text/javascript" src="js/lib/js/angular/angular.js" ></script>
<script>
var app=angular.module("app",[]);
app.controller("global",['$scope',function($scope){
$scope.g=[
{text:"亚洲",nat:[
{text:"中国",cities:[{text:"北京"}]},
{text:"巴林",cities:[]},
{text:"韩国",cities:[{text:"首尔"}]},
{text:"黎巴嫩",cities:[]},
{text:"东帝汶",cities:[]},
{text:"尼泊尔",cities:[]},
{text:"泰国",cities:[{text:"曼谷"}]},
{text:"巴基斯坦",cities:[{text:"伊斯兰堡"}]}
]},
{text:"欧洲",nat:[
{text:"德国",cities:[]},
{text:"英国",cities:[]}
]},
{text:"北美洲"},
{text:"南美洲"},
{text:"非洲"},
{text:"大洋洲"},
{text:"南极洲"}
]
}]);
</script>
</head>
<body>
<p ng-app="app" ng-controller="global">
<select ng-model="ihg" ng-options="ihg.text for ihg in g">
<option value="">-- 洲际 --</option>
</select>
<select ng-if="ihg.nat" ng-model="nat" ng-options="nat.text for nat in ihg.nat">
<option value="">-- 国家 --</option>
</select>
<select ng-if="nat.cities" ng-model="city" ng-options="city.text for city in nat.cities">
<option value="">-- 城市 --</option>
</select>
</p>
</body>
</html>Related recommendations ：
AngularJS front-end js framework
In-depth analysis of AngularJS dependency injection principle
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