text: /**
   * Copyright (c) 2017 Baidu, Inc. All Rights Reserved.
   * 
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   * 
   *   http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  
  'use strict';
  
  var BaseCard = require('./BaseCard');
  
  /**
   * @class TextCard 纯文本卡片
   * @extends {BaseCard}
   */
  class TextCard extends BaseCard {
      
      /**
       * @param {string} content 文本内容
       */
      constructor (content = '') {
          super(['content']);
          this.data.type = 'txt';
          this.data.content = content;
      }
  }
  
  module.exports = TextCard;
  