<form action="" class="form-horizontal col-md-9" name="reset_pwd" ng-submit="resetPwd()">
  <div class="form-group">
    <label class="col-sm-2 control-label">密码</label>
    <div class="col-sm-8">
      <input type="password" name="mycompwd" class="form-control" ng-model="mycompwd" placeholder="请输入密码">
    </div>
  </div>
  <div class="form-group">
    <label class="col-sm-2 control-label">重复密码</label>
    <div class="col-sm-8">
      <input type="password" name="resetmycompwd" class="form-control" ng-model="resetmycompwd" placeholder="再次输入密码" required>
    </div>
    <span style="color:red" ng-show="mycompwd!=resetmycompwd && reset_pwd.resetmycompwd.$dirty && reset_pwd.submitted
    ">密码不一致</span>
  </div>
  <div class="form-group">
    <button type="submit" class="btn btn-primary" >确认</button>
    <button type="button" class="btn btn-default" ng-click="resetpwd_cancle()">取消</button>
  </div>
</form>

$scope.submitted = false;
$scope.resetPwd = function(){
  console.log(666);
  if($scope.reset_pwd.$valid && $scope.mycompwd == $scope.resetmycompwd){
    console.log('重置成功,进行其他操作');
  }else{
    $scope.reset_pwd.submitted = true;
  }
}

<form action="" class="form-horizontal col-md-9" name="reset_pwd" ng-submit="resetPwd()">
  <div class="form-group">
    <label class="col-sm-2 control-label">密  码</label>
    <div class="col-sm-8">
      <input type="password" name="mycompwd" class="form-control" ng-model="mycompwd" placeholder="请输入密码">
    </div>
  </div>
  <div class="form-group">
    <label class="col-sm-2 control-label">重复密码</label>
    <div class="col-sm-8">
      <input ng-focus type="password" name="resetmycompwd" class="form-control" ng-model="resetmycompwd" placeholder="再次输入密码" required>
    </div>
    <span style="color:red" ng-show="mycompwd!=resetmycompwd && reset_pwd.resetmycompwd.$dirty
      && !reset_pwd.resetmycompwd.$focused
    ">密码不一致</span>
  </div>
  <div class="form-group">
    <button type="submit" class="btn btn-primary" >确认</button>
    <button type="button" class="btn btn-default" ng-click="resetpwd_cancle()">取消</button>
  </div>
</form>

app.directive('ngFocus',[function(){
  var focusClass = 'ng-focused';
  return{
    restrict:'AE',
    require:'ngModel',
    link:function(scope,element,attrs,ctrl){
      ctrl.$focused = false;
      element.bind('focus',function(e){
        element.addClass(focusClass);
        scope.$apply(function(){
          ctrl.$focused = true;
        });
        element.bind('blur',function(e){
          element.removeClass(focusClass);
          scope.$apply(function(){
            ctrl.$focused = false;
          });
        });
      })
    }
  };
}]);