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小编给大家分享一下AngularJS如何实现的select二级联动下拉菜单功能，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！
1、js属于一种解释性脚本语言；2、在绝大多数浏览器的支持下，js可以在多种平台下运行，拥有着跨平台特性；3、js属于一种弱类型脚本语言，对使用的数据类型未做出严格的要求，能够进行类型转换，简单又容易上手；4、js语言安全性高，只能通过浏览器实现信息浏览或动态交互，从而有效地防止数据的丢失；5、基于对象的脚本语言，js不仅可以创建对象，也能使用现有的对象。
具体如下：
<!DOCTYPE html>
<html ng-app>
<head lang="en">
<meta charset="UTF-8">
<title></title>
</head>
<script src="../script/angular.js"></script>
<body ng-controller="Controller">
<div>所属分类：
<select ng-model="selected1" ng-options="m.roleName for m in classification1" ng-change="changeClassification(selected1)">
<option value="">-- 请选择 --</option>
</select>
<select ng-model="selected2" ng-options="m.roleName for m in classification2">
<option value="">-- 请选择 --</option>
</select>
</div>
</body>
<script>
var contantCroleList = [
{ "roleName" : "软件开发", "roleId" : "role1", "children" : [
{ "roleName" : "软件AAA", "roleId" : "role11", "children" : [] },
{ "roleName" : "软件BBB", "roleId" : "role12", "children" : []},
{ "roleName" : "软件CCC", "roleId" : "role12", "children" : []},
{ "roleName" : "软件DDD", "roleId" : "role12", "children" : []},
{ "roleName" : "软件EEE", "roleId" : "role12", "children" : []},
{ "roleName" : "软件FFF", "roleId" : "role12", "children" : []}
]},
{ "roleName" : "硬件开发", "roleId" : "role2", "children" : [
{ "roleName" : "硬件AAA", "roleId" : "role21", "children" : [] },
{ "roleName" : "硬件BBB", "roleId" : "role22", "children" : []},
{ "roleName" : "硬件CCC", "roleId" : "role23", "children" : []},
{ "roleName" : "硬件DDD", "roleId" : "role24", "children" : []},
{ "roleName" : "硬件EEE", "roleId" : "role25", "children" : []},
{ "roleName" : "硬件FFF", "roleId" : "role26", "children" : []}
]},
{ "roleName" : "嵌入式开发", "roleId" : "role3", "children" : [
{ "roleName" : "嵌入式AAA", "roleId" : "role31", "children" : [] },
{ "roleName" : "嵌入式BBB", "roleId" : "role32", "children" : []},
{ "roleName" : "嵌入式CCC", "roleId" : "role33", "children" : []},
{ "roleName" : "嵌入式DDD", "roleId" : "role34", "children" : []},
{ "roleName" : "嵌入式EEE", "roleId" : "role35", "children" : []},
{ "roleName" : "嵌入式FFF", "roleId" : "role36", "children" : []}
]}
];
function Controller($scope) {
$scope.classification1 = contantCroleList;
$scope.changeClassification = function (selected1) {
$scope.classification2 = selected1.children;
};
}
</script>
</html>以上是“AngularJS如何实现的select二级联动下拉菜单功能”这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注亿速云行业资讯频道！
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