http://www.cnblogs.com/beijiguangyong/archive/2010/11/15/2302807.html#_Toc281750445
http://www.runoob.com/design-pattern/factory-pattern.html
本文共 141 字，大约阅读时间需要 1 分钟。
http://www.cnblogs.com/beijiguangyong/archive/2010/11/15/2302807.html#_Toc281750445
http://www.runoob.com/design-pattern/factory-pattern.html