IO编程

http://zxc8899.iteye.com/blog/1556146

http://blog.youkuaiyun.com/ilibaba/article/details/3955799

http://www.blogjava.net/min-water/articles/337371.html

http://www.cnblogs.com/rollenholt/archive/2011/09/11/2173787.html

http://www.cnblogs.com/hqr9313/archive/2012/04/23/2467294.html