/**
  * 傻逼语录
  */
 public function editText()
 {
     $model = new \Admin\Model\SystemModel();
     if (isset($_POST['System'])) {
         $post = $_POST['System'];
         $admin_info = $this->admin_info;
         $model->editText($post, $admin_info);
     }
     $value = $model->getValue('text');
     $this->assign('text', $value);
     $this->display('edit_text');
 }