$event

html

      <label>密码</label>      <input type="password" ng-keyup="enter($event)" ng-model='password' placeholder="密码" autocomplete="off"/>

js

   $scope.enter = function(e) {        var keycode = window.event ? e.keyCode : e.which;        if (keycode == 13) {            $scope.localLogin();        }    };   

注意

• $event :触发这个事件的对象
• ie和其他浏览器对keycode 处理方式不一样