text: /**
   * 单例
   * @author wangbinxiang
   * @date   2016-09-03T01:41:40+0800
   * @param  {[type]}                 ) {             let instance;  return (newInstance) [description]
   * @return {[type]}                   [description]
   */
  let __instance = (function () {
    let instance;
    return (newInstance) => {
      if (newInstance) instance = newInstance;
      return instance;
    }
  }());
  
  export default __instance;