Angualr 实现复选框全选功能

html

<html lang="en">  
<head>  
    <meta charset="UTF-8">  
    <title>document</title>  
    <script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
    <script src="http://cdn.static.runoob.com/libs/angular.js/1.4.6/angular.min.js"></script>
</head>  
<body ng-app="myApp">  
    <div ng-controller="mainCtrl">  
        <label>全选<input type="checkbox" ng-model="selectAll" ng-click="all(selectAll)"></label><br/>  
        <div ng-repeat="person in persons" class="items">  
            <label>{{person.name}}:<input type="checkbox" ng-checked="person.state" ng-model="person.state" ng-click="every()"> </label><br/>  
        </div>  
  
        <!-- <div>selectAll : {{selectAll}}</div>  
        <div ng-repeat="person in persons">  
            {{person.name}} : {{person.state}}  
        </div>   -->
    </div>  
<body>

js

angular.module("myApp",[])  
.controller("mainCtrl", function ($scope) {  
    $scope.selectAll=false;  
    $scope.all= function (m) {  
        for(var i=0;i<$scope.persons.length;i++){  
          $scope.persons[i].state=m;  
        }  
    };  

    $scope.every = function(){
        for(var i=0;i<$scope.persons.length;i++){  
          if($scope.persons[i].state==false){
            $scope.selectAll=false;
            return;
          }
          $scope.selectAll=true; 
        } 
    };
    $scope.persons=[  
        {name:"a",state:false},  
        {name:"b",state:false},  
        {name:"c",state:false},  
        {name:"d",state:false}  
    ]  
});