你有两个appraoches：

1）使用简单的基于正则表达式的文本操作

2）将xml反序列化为对象而不是应用linq查询

这取决于你接下来会做什么......

You have two appraoches:
1) using simple regular expression based text manipulation
2) deserializing the xml to object and than applying a linq query
It depends what you will do next...