肯定出错,\是转义字符,如果在2个字符串中间加个\的话应该这么写就不包错了 string strDate = DateTime.Now.ToString("yyMMdd")+"\\" + DateTime.Now.ToString("yyyymmddhhmmss");
format格式错误了吧有专门格式的,你想写的应该是string strDate = DateTime.Now.ToString("D") + "\" + DateTime.Now.ToString("F");