小编JP *_*nog的帖子

<div ng-app="myApp" ng-controller="myCtrl">
  <select ng-model="myDropDown" ng-change="Dialog()">
    <option>a</option>
    <option>b</option>
  </select>
</div>

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js"></script>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
    $scope.Dialog = function () {
        var dialog = confirm('Continue?');
        if(!dialog) {
    	    alert("Option must not change");
            /** The problem is the dropdown still select the option. **/
        }
    }
});
</script>