C++中繼承 聲明基類析構函數爲虛函數作用，單繼承和多繼承關係的內存分佈

  1，基類析構函數不爲虛函數 #include "pch.h" #include <iostream> class CBase { public: CBase() { m_one = 0; printf("this is CBase construct\n"); } ~CBase() { printf("this is ~

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