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小編給大家分享一下AngularJS如何實現的select二級聯動下拉菜單功能，相信大部分人都還不怎么了解，因此分享這篇文章給大家參考一下，希望大家閱讀完這篇文章后大有收獲，下面讓我們一起去了解一下吧！
1、js屬于一種解釋性腳本語言；2、在絕大多數瀏覽器的支持下，js可以在多種平臺下運行，擁有著跨平臺特性；3、js屬于一種弱類型腳本語言，對使用的數據類型未做出嚴格的要求，能夠進行類型轉換，簡單又容易上手；4、js語言安全性高，只能通過瀏覽器實現信息瀏覽或動態交互，從而有效地防止數據的丟失；5、基于對象的腳本語言，js不僅可以創建對象，也能使用現有的對象。
具體如下：
<!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>所屬分類：
<select ng-model="selected1" ng-options="m.roleName for m in classification1" ng-change="changeClassification(selected1)">
<option value="">-- 請選擇 --</option>
</select>
<select ng-model="selected2" ng-options="m.roleName for m in classification2">
<option value="">-- 請選擇 --</option>
</select>
</div>
</body>
<script>
var contantCroleList = [
{ "roleName" : "軟件開發", "roleId" : "role1", "children" : [
{ "roleName" : "軟件AAA", "roleId" : "role11", "children" : [] },
{ "roleName" : "軟件BBB", "roleId" : "role12", "children" : []},
{ "roleName" : "軟件CCC", "roleId" : "role12", "children" : []},
{ "roleName" : "軟件DDD", "roleId" : "role12", "children" : []},
{ "roleName" : "軟件EEE", "roleId" : "role12", "children" : []},
{ "roleName" : "軟件FFF", "roleId" : "role12", "children" : []}
]},
{ "roleName" : "硬件開發", "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" : "嵌入式開發", "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如何實現的select二級聯動下拉菜單功能”這篇文章的所有內容，感謝各位的閱讀！相信大家都有了一定的了解，希望分享的內容對大家有所幫助，如果還想學習更多知識，歡迎關注億速云行業資訊頻道！
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