转 类图

http://www.cnblogs.com/olvo/archive/2012/05/03/2481014.html

http://jp.zime.edu.cn:8080/sj02/second/RUP/process/modguide/md_aggrg.htm

http://uml.org.cn/oobject/201104212.asp

http://www.uml.org.cn/oobject/201211231.asp

http://www.sparxsystems.cn/resources/uml2_tutorial/uml2_classdiagram.html

https://wenku.baidu.com/view/272acad03186bceb19e8bbf0.html

http://www.cnblogs.com/wolf-sun/p/3420120.html

http://www.uml.org.cn/oobject/201510214.asp

http://www.cnblogs.com/duanxz/archive/2012/06/13/2547801.html

http://blog.csdn.net/nodeathphoenix/article/details/7710796

http://www.cnblogs.com/silent2012/archive/2011/09/07/2169946.html

http://blog.csdn.net/bigtree_3721/article/details/73423702