angularjs中回车键触发某一事件的方法

<input id="input" name="input" ng-model="querykdUser.page.pageSize" ng-keyup="myKeyup($event)" class="form-control" style="width:60px;"> 

$scope.myKeyup = function(e){ //IE 编码包含在window.event.keyCode中，Firefox或Safari 包含在event.which中var keycode = window.event?e.keyCode:e.which;     if(keycode==13){    $scope.showkdUsers();    }};