标签:
http://blog.sina.com.cn/s/blog_4d7c97a00101cv5h.html
http://www.cnblogs.com/YoungHit/archive/2012/03/09/2388230.html
http://www.ilovematlab.cn/thread-28150-1-1.html
gaussic
原文地址:http://www.cnblogs.com/chuiyuan/p/4959413.html