说明： xml解析功能，一般的xml解析，给大家参考下
(xml parsing, general xml parsing, for your reference under)
文件列表：
XmlClass
........\XmlClass
........\........\bin
........\........\...\Debug
........\........\...\.....\XmlClass.dll
........\........\...\.....\XmlClass.pdb
........\........\obj
........\........\...\Debug
........\........\...\.....\TempPE
........\........\...\.....\XmlClass.dll
........\........\...\.....\XmlClass.pdb
........\........\...\XmlClass.csproj.FileList.txt
........\........\Properties
........\........\..........\AssemblyInfo.cs
........\........\XmlClass.csproj
........\........\XmlCreate.cs
........\XmlClass.sln
