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AngularJS ng-repeat指令及Ajax的应用实例分析

更新时间:2020-05-22 19:30:01 作者:startmvc
本文实例讲述了AngularJSng-repeat指令及Ajax的应用。分享给大家供大家参考,具体如下:ng-repea

本文实例讲述了AngularJS ng-repeat指令及Ajax的应用。分享给大家供大家参考,具体如下:

ng-repeat 指令用于循环输出指定次数的 HTML 元素。集合必须是数组或对象。

定义:


<element ng-repeat="expression"></element>

说明:experssion表达式定义了如何循环集合。常用的如:x in records

下面通过一个例子,来说明ng-repeat如何绘制一个表格:


<div ng-app='mainApp' ng-controller='studentController'>
 <table border="0">
 <tr>
 <td>姓</td>
 <td><input type="text" ng-model='student.firstName'></td>
 </tr>
 <tr>
 <td>名</td>
 <td><input type="text" ng-model='student.lastName'></td>
 </tr>
 <tr>
 <td>名字</td>
 <td>{{student.fullName()}}</td>
 </tr>
 <tr>
 <td>科目</td>
 <td>
 <table>
 <tr>
 <th>名字</th>
 <th>标记</th>
 </tr>
 <tr ng-repeat='sub in student.subjects'>
 <td>{{sub.name}}</td>
 <td>{{sub.marks}}</td>
 </tr>
 </table>
 </td>
 </tr>
 </table>
</div>

表可以使用CSS样式设置样式。


<style>
 table, th , td {
 border: 1px solid grey;
 border-collapse: collapse;
 padding: 5px;
 }
 table tr:nth-child(odd) {
 background-color: #f2f2f2;
 }
 table tr:nth-child(even) {
 background-color: #ffffff;
 }
</style>

利用angularjs的ng-repeat指令绘制表格:


<script>
 var mainApp=angular.module('mainApp',[]); //定义一个名为mainApp的模块
 mainApp.controller('studentController',function($scope){
 $scope.student={
 firstName:'聂',
 lastName:'鹏飞',
 subjects:[
 {name:'物理',marks:73},
 {name:'化学',marks:90},
 {name:'数学',marks:68},
 {name:'英文',marks:85},
 {name:'生物',marks:77},
 ],
 fullName:function(){
 var studentObject;
 studentObject = $scope.student;
 return studentObject.firstName+' '+studentObject.lastName;
 }
 };
 });
</script>

效果:

上面例子表格中展示的数据也可以通过ajax请求从服务器中获取,然后利用ng-repeat指令插入到页面中,具体实现见下面代码:


<html>
<head>
<title>Angular JS Controller</title>
<script src="angularjs/angular-1.3.0/angular.min.js"></script>
<style>
 table, th , td {
 border: 1px solid grey;
 border-collapse: collapse;
 padding: 5px;
 }
 table tr:nth-child(odd) {
 background-color: #f2f2f2;
 }
 table tr:nth-child(even) {
 background-color: #ffffff;
 }
</style>
</head>
<body>
 <h2>AngularJS 表格应用示例</h2>
 <div ng-app='mainApp' ng-controller='studentController'>
 <table border="0">
 <tr>
 <td>姓</td>
 <td><input type="text" ng-model='student.firstName'></td>
 </tr>
 <tr>
 <td>名</td>
 <td><input type="text" ng-model='student.lastName'></td>
 </tr>
 <tr>
 <td>名字</td>
 <td>{{student.fullName()}}</td>
 </tr>
 <tr>
 <td>科目</td>
 <td>
 <table>
 <tr>
 <th>名字</th>
 <th>标记</th>
 </tr>
 <tr ng-repeat='sub in student.subjects'>
 <td>{{sub.name}}</td>
 <td>{{sub.marks}}</td>
 </tr>
 </table>
 </td>
 </tr>
 </table>
 </div>
 <script>
 var mainApp=angular.module('mainApp',[]);
 mainApp.controller('studentController',function($scope,$http){
 $scope.student={
 firstName:'聂',
 lastName:'鹏飞',
 fullName:function(){
 var studentObject;
 studentObject = $scope.student;
 return studentObject.firstName+' '+studentObject.lastName;
 },
 };
 var url="data.txt";
 $http.post(url).success(function(response){
 $scope.student.subjects=response;
 })
 });
 </script>
</body>
</html>

说明:需要放在服务器环境中运行

AngularJS ng-repeat指令 Ajax