ResetPasswordApp.directive('pwCheck', [function () {
   return {
       restrict: 'A',
       require: "ngModel",
       link: function(scope, elem, attrs, ctrl) {
           var otherInput = elem.inheritedData("$formController")[attrs.pwCheck];
           ctrl.$parsers.push(function(value) {
               ctrl.$setValidity("pwCheck",value === otherInput.$viewValue);
               return value;
           });

           otherInput.$parsers.push(function(value) {
               ctrl.$setValidity("pwCheck", value === ctrl.$viewValue);
               return value;
           });
       }
   };
}]);


<form ng-controller="confimPwFormController" ng-submit="submit()" id="confirmPwForm" name="confirmPwForm">
<div class="form-group">
<input type="password" placeholder="请输入新密码" ng-model="confirm.password"  name="password" required=true class="required form-control" />
</div>
<div class="form-group">
<input type="password" placeholder="请再次输入新密码" ng-model="confirm.plainPassword" pw-check="password"  name="plainPassword" required class="required form-control" />
</div>
<div class="form-group">
<input type="submit" class="btn btn-info btn-block" value="完成"   ng-disabled="confirmPwForm.$invalid"/>
</div>
</form>