<script type='text/javascript' src='path/to/angular.min.js'></script>

 1 <div class="form-group" ng-controller="SendSafeMessageController">
 2     <label class="col-md-2 control-label">答复内容:</label>
 3     <div class="col-md-10">
 4         <div ng-repeat="reply in fchat.replies">
 5             <div class="form-group">
 6                 <div class="col-md-12">
 7                     <div class="col-md-1">
 8                         <label for="reply{{$index + 1}}">回答{{$index + 1}}</label>
 9                     </div>
10                     <div class="col-md-9">
11                         <input type="text" class="form-control" ng-model="reply.value"
12                                id="reply{{$index + 1}}" name="reply{{$index + 1}}" />
13                     </div>
14                     <div class="col-md-2 img-link">
15                         <a href="" ng-click="fchat.incrReply($index)">
16                             <img src="/images/plus.png" alt="plus" width="30px" height="30px" />
17                         </a>
18                         <a href="" ng-click="fchat.decrReply($index)" ng-show="fchat.canDescReply">
19                             <img src="/images/minus.png" alt="minus" width="30px" height="30px"/>
20                         </a>
21                         <img src="/images/dis_minus.png" alt="minus" width="30px" height="30px"
22                              ng-show="!fchat.canDescReply"/>
23                     </div>
24                 </div>
25             </div>
26         </div>
27         <input type="hidden" id="replies" name="replies" value="{{fchat.combineReplies()}}" />
28     </div>
29 </div>

 1 var ftitAppModule = angular.module('ftitApp', []);
 2
 3 ftitAppModule.controller('SendSafeMessageController',
 4     function ($scope, $log) {
 5         $scope.fchat = new Object();
 6         $scope.fchat.replies = [{key: 0, value: ""}];
 7         // 初始化时由于只有1条回复，所以不允许删除
 8         $scope.fchat.canDescReply = false;
 9
10         // 增加回复数
11         $scope.fchat.incrReply = function($index) {
12             $scope.fchat.replies.splice($index + 1, 0,
13                 {key: new Date().getTime(), value: ""});   // 用时间戳作为每个item的key
14             // 增加新的回复后允许删除
15             $scope.fchat.canDescReply = true;
16         }
17
18         // 减少回复数
19         $scope.fchat.decrReply = function($index) {
20             // 如果回复数大于1，删除被点击回复
21             if ($scope.fchat.replies.length > 1) {
22                 $scope.fchat.replies.splice($index, 1);
23             }
24             // 如果回复数为1，不允许删除
25             if ($scope.fchat.replies.length == 1) {
26                 $scope.fchat.canDescReply = false;
27             }
28         }
29
30         $scope.fchat.combineReplies = function() {
31             var cr = "";
32             for (var i = 0; i < $scope.fchat.replies.length; i++) {
33                 cr += "#" + $scope.fchat.replies[i].value;
34             }
35             cr = cr.substring(1);
36             $log.debug("Combined replies: " + cr);
37
38             return cr;
39         }
40     }
41 );