angular 鼠标移入移开元素显示或隐藏

<div class="col-md-12 itemtypebox"  ng-class="{'activedbackgroundcolor':showtimes}" ng-mouseenter="showtimes = true" ng-mouseleave="showtimes = false">
<span class="itemtype col-md-10" ng-bind="item.name"  ng-class="{'colorfff':showtimes}"></span>
<span class="itemtype col-md-2"><i class="fa fa-times colorfff" ng-show="showtimes"></i></span>
</div>