C#获取网页纯文本

C:\WindowsApplication2\WindowsApplication2\obj\Debug\ResolveAssemblyReference.cache C:\WindowsApplication2\WindowsApplication2\obj\Debug\RSSPlay.Form1.resources C:\WindowsApplication2\WindowsApplication2\obj\Debug\WindowsApplication2.Properties.Resources.resources C:\WindowsApplication2\WindowsApplication2\obj\Debug\RSSPlay.csproj.GenerateResource.Cache C:\WindowsApplication2\WindowsApplication2\obj\Debug\WindowsApplication2.exe C:\WindowsApplication2\WindowsApplication2\bin\Debug\WindowsApplication2.exe C:\WindowsApplication2\WindowsApplication2\bin\Debug\WindowsApplication2.pdb C:\WindowsApplication2\WindowsApplication2\obj\Debug\WindowsApplication2.pdb C:\RSSPlay\WindowsApplication2\bin\Debug\WindowsApplication2.exe C:\RSSPlay\WindowsApplication2\bin\Debug\WindowsApplication2.pdb C:\RSSPlay\WindowsApplication2\obj\Debug\ResolveAssemblyReference.cache C:\RSSPlay\WindowsApplication2\obj\Debug\RSSPlay.Form1.resources C:\RSSPlay\WindowsApplication2\obj\Debug\WindowsApplication2.Properties.Resources.resources C:\RSSPlay\WindowsApplication2\obj\Debug\RSSPlay.csproj.GenerateResource.Cache C:\RSSPlay\WindowsApplication2\obj\Debug\WindowsApplication2.exe C:\RSSPlay\WindowsApplication2\obj\Debug\WindowsApplication2.pdb