public function dele()
 {
     //创建模型对象
     $Model = new UserModel();
     //调用delete方法删除数据
     $result = $Model->delete(I('get.id'));
     if ($result !== false) {
         //            echo '删除成功';
         //            header('Location: index.php?m=Home&c=User&a=index');
         $this->success('删除成功', U('index'));
     } else {
         echo '删除失败' . $Model->getError();
     }
 }