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－－－＞＞請問C++中有個"虛擬函數"有何作用？？？？？？？
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期待實現
Apr 15, 1998, 3:00:00 AM4/15/98
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請問C++中何謂虛擬函數, 可否舉一簡單例子說明
又"訊息"的定義若以 A+B=C 來說應如何區別??
麻煩大家, 謝謝!
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