摘要:
benifit: 1.make developers extremely productive is code reuse, which is the ability to derive a class that inherits all of the capabilities of a base 阅读全文
posted @ 2016-07-21 17:23
PanPan003
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摘要:
1.A type that defines an event member allows the type (or instances of the type) to notify other objects that something special has happened 2.definin 阅读全文
posted @ 2016-07-21 09:57
PanPan003
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