参考:
http://lifethinker.iteye.com/blog/283668
http://www.uml.org.cn/mxdx/200907132.asp
http://www.ituring.com.cn/article/125
http://blog.csdn.net/educast/article/details/7248891
参考:
http://lifethinker.iteye.com/blog/283668
http://www.uml.org.cn/mxdx/200907132.asp
http://www.ituring.com.cn/article/125
http://blog.csdn.net/educast/article/details/7248891