https://www.zhihu.com/question/31739106 作者：知乎用户链接：https://www.zhihu.com/question/31739106/answer/137674678来源：知乎著作权归作者所有。商业转载请联系作者获得授权，非商业转载请注明出处。swift MT103报文名称叫做 single custome...