/// <summary> /// 得到当前的实例 /// </summary> /// <returns></returns> public static ResponseDataStrategy GetInstance() { if (_instance == null) { _instance = new ResponseFile(); } return _instance; }
/// <summary> /// 得到当前的实例 /// </summary> /// <returns></returns> public static ResponseDataStrategy GetInstance() { if (_instance == null) { _instance = new ResponseFile(); } return _instance; }