Angularjs的键盘事件的绑定

<button ng-click="login()" ng-keypress="todoSomething($event)" class="btn btn-success btn-lg" ng-disabled="loginForm.$invalid"> 登录</button>

 $scope.todoSomething=function($event){   if($event.keyCode==13){//回车     login();   } }

html<button ng-click="login()" ng-enter="login()" class="btn btn-success btn-lg" ng-disabled="loginForm.$invalid"> 登录</button>

myApp.directive('ngEnter', function () {   return function (scope, element, attrs) {     element.bind("keydown keypress", function (event) {       if (event.which === 13) {         scope.$apply(function () {           scope.$eval(attrs.ngEnter);         });         event.preventDefault();       }     });   }; });