接口和抽象类的区别。
2014-09-08 13:56
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http://stackoverflow.com/questions/1913098/what-is-the-difference-between-an-interface-and-abstract-class
http://stackoverflow.com/questions/1913098/what-is-the-difference-between-an-interface-and-abstract-class
http://stackoverflow.com/questions/1913098/what-is-the-difference-between-an-interface-and-abstract-class