AngularJS实现动态切换样式的方法分析

<!--推荐或热点标题-->
<div class="comTitStyle">
  <div>
    <a ng-click="titleClick(0)" ng-class="{'selected':focusIndex==0}" class="selected">推荐</a>
  </div>
  <div>
    <a ng-click="titleClick(1)" ng-class="{'selected':focusIndex==1}">热点</a>
  </div>
</div>

.controller('newsCtrl', function($scope) {
  //定义要聚焦的索引
  $scope.focusIndex=0; //默认显示推荐板块
  $scope.recHide = false;
  $scope.hotHide = true;
  $scope.titleClick = function(index){
    $scope.focusIndex=index; //点击切换样式
    if(index == 0){
      $scope.recHide = false;
      $scope.hotHide = true;
    }else if(index == 1){
      $scope.recHide = true;
      $scope.hotHide = false;
    }
  }
})

.comTitStyle{
  width: 16rem;
  height: 2rem;
}
.comTitStyle > div{
  display: inline-block;
  width: 7.9rem;
  height: 2rem;
  vertical-align: middle;
  text-align: center;
  line-height: 2rem;
}
.comTitStyle > div > a{
  width: 2.5rem;
  height: 1.9rem;
  display: inline-block;
  vertical-align: middle;
  font-size: .8rem;
  color: #666666;
}
.comTitStyle > div > .selected{
  border-bottom: 1px solid #3BB4C1;
  font-weight: bold;
}