在元件設計時， 有時會看到元件的作者在某些函式或程序後面加上override、virtual、....， 請問有沒有override、virtual、dynamic相關的說明文件或參考資料 或著能不能解釋一下有寫這三個和沒有寫的差別~~~ 謝謝~~~

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初出芧房程設師，
左鍵右鼠寫程式，
日扣夜寫眼框溼，
望能早成系分師。
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這是我在delphi中找到的說明 Virtual versus dynamic Virtual and dynamic methods are semantically equivalent. They differ only in the implementation of method-call dispatching at runtime. Virtual methods optimize for speed, while dynamic methods optimize for code size. In general, virtual methods are the most efficient way to implement polymorphic behavior. Dynamic methods are useful when a base class declares many overridable methods which are inherited by many descendant classes in an application, but only occasionally overridden. type TFirstComponent = class(TCustomControl) procedure Move; { static method } procedure Flash; virtual; { virtual method } procedure Beep; dynamic; { dynamic virtual method } end; TSecondComponent = class(TFirstComponent) procedure Move; { declares new method } procedure Flash; override; { overrides inherited method } procedure Beep; override; { overrides inherited method } end; 一般來說Virtual和dynamic是用來做一個可以讓子代override的FUNCTION,PROCEDURE,其本身可能沒有實做該FUNCTION或PROCEDURE,在HELP中說Virtual和dynamic其實是一樣的,兩者的不同只在於執行時其Virtual比較快,而dynamic則取決於程式碼的多寡而定 @@~~飛翔在天際的精靈~~@@

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@@~~飛翔在天際的精靈~~@@