msdn:https://msdn.microsoft.com/zh-cn
codeplex:https://www.codeplex.com/
gotdotnet:http://www.gotdotnet.com
sourceforge:http://sourceforge.net/
google:https://code.google.com/
oschina:http://www.oschina.net/
github:https://github.com/
open:http://www.open-open.com/
opensource:http://opensource.org/
apache:http://www.apache.org/
cnblogs:http://www.cnblogs.com/
csdn:http://www.csdn.net/
iteye:http://www.iteye.com/
jb51:http://www.jb51.net/