基于内存流操作等三种方式，C#中对XML字串的操作测试。-Three ways based on the operation of the memory stream operation test, the C# XML string.

一个非常好用的 Xml 解析工具 , 更快 , 并且使用更少的内存分配 , 现在是所有开发的重点 , 经过良好的测试 , 是您的最佳选择 ;(A very good Xml parsing tool, faster, and less memory allocation, is now the focus of all development, and it's your best choice after a good test.)