短語詞組短語derived d class 派生類derived -class 派生類most derived class 最末層衍生類別;派生類;最底層的派生類;最末層衍生種別derived class layout 導(dǎo)出類的布局for derived class 為派生類的;派生類的of derived class 派生類的derived class detail 繼承類and derived class 和派生類derived class constructor 派生類構(gòu)造函數(shù) 返回 derived class