多线程的一些链接
http://knowledge.swanky.wu.googlepages.com/threading_in_c_sharp.html#_Introduction
http://www.yaosansi.com/post/1165.html
http://www.yaosansi.com/post/1166.html
http://www.yaosansi.com/post/1167.html
http://blog.csdn.net/HenryLubin/archive/2005/12/08/547178.aspx
http://blog.csdn.net/HenryLubin/archive/2005/12/08/547166.aspx