想缓存选择按钮时，可以使用这样的方法。

index.html

1  2  3  4      5      6  7  8  9     
     
      Choose Tags
     
    10     
     
      11         
      
       You have choosen:
      
12         
      
13         
      14             (({
    {selectedTag}}))15         16         
      
17         
      
       18             
       
        {
   { category.name }}
       
19             
       
        20                 
        
         21                     
         22                     {
    { tag.name }}23                 
        
24             
       
25             
       
26         
      
27     
     
28 29 
{
   {selected|json}}
30 
{
   {selectedTags|json}}
31 32 33 

ng-checked:是angular封装用来控制该checkbox是否选中使用的，return true是选中，反则不选中；

ng-click：这个是angular封装的的onclick方法，可以传入$event；

script.js

1  2  3   4  5  6 var iApp = angular.module("App", []); 7  8  9 10 iApp.controller('AddStyleCtrl', function($scope)11 {12     $scope.tagcategories = [13         { 14             name: 'Color',15             tags: [16                 {17                     id:1,18                     name:'color1'19                 },20                 {21                     id:2,22                     name:'color2'23                 },24                 {25                     id:3,26                     name:'color3'27                 },28                 {29                     id:4,30                     name:'color4'31                 },32             ]33         },34         { 35             name:'Cat',36             tags:[37                 {38                     id:5,39                     name:'cat1'40                 },41                 {42                     id:6,43                     name:'cat2'44                 },45             ]46         },47         { 48             name:'Scenario',49             tags:[50                 {51                     id:7,52                     name:'Home'53                 },54                 {55                     id:8,56                     name:'Work'57                 },58             ]59         }60     ];61 62     $scope.selected = []; 63 64   65 66     $scope.updateSelection = function($event, id){67         var checkbox = $event.target;68         var action = (checkbox.checked?'add':'remove');//这里有点奇怪 相反了  69         if(action == 'add' && $scope.selected.indexOf(id) == -1){70             $scope.selected.push(id); 71         }72         if(action == 'remove' && $scope.selected.indexOf(id)!=-1){73             var idx = $scope.selected.indexOf(id);74             $scope.selected.splice(idx,1); 75         }76     }77 78     $scope.isSelected = function(id){79         return $scope.selected.indexOf(id)>=0;80     }81 });