只需要四行(从第12到第15行)就为请求创建了一个格式正确的XML文件。

Just four lines, lines 12 through 15, create the properly formatted XML for the request.

youdao

而且，有些格式正确的XML可能与正则表达式不匹配，所以日后必须修改它们。

Also, some valid forms of XML may not match your regular expressions, so you will have to modify them later.

youdao

这并不意味着消息必须属于某个xml域，但是位流必须包含格式正确的XML。

This does not mean that the message must be in one of the XML domains, but the bitstream must contain well-formed XML.

youdao