UML学习2019-06-10 本文已影响0人 VerseWang 看懂UML类图和时序图 https://github.com/me115/design_patterns/blob/master/read_uml.rst https://www.cnblogs.com/olvo/archive/2012/05/03/2481014.html https://blog.csdn.net/luansha0/article/details/82260678
