[教学] ask for help!

[qinnianhua]

Anybody can provide information about free websites of teaching knowledge on software and hardwares?

Thank you very much!

 

[xiaomage]

http://www.w3schools.com/

http://www.csdn.net/magazine/

 

[qinnianhua]

感激得热泪盈眶！

 

[xiaomage]

男儿有泪不轻弹.