有用的链接

http://www.360doc.com/content/11/0321/17/4464196_103237622.shtml

http://www.360doc.com/content/11/0809/18/19147_139207975.shtml

 

http://www.chenjiliang.com/article/View.aspx?ArticleID=19019

 

http://kb.cnblogs.com/a/1915613/

http://www.alixixi.com/program/a/2008050727442.shtml

 

http://msdn.microsoft.com/zh-cn/library/system.net.ftpwebrequest.getrequeststream(VS.80).aspx