C++虛函數表調用學習

知識點是看 陳皓大哥的部落格，代碼也參考了他的，不過做了很小的改動。

原文連結：http://blog.csdn.net/haoel/article/details/1948051

#include "stdio.h"class Base{public:virtual void Fun1(){printf("Call Base Fun1\n");}virtual void Fun2(){printf("Call Base Fun2\n");}virtual void Fun3(){printf("Call Base Fun3\n");}private:virtual void Fun4(){printf("Call Base Fun4\n");}};class Derived : public Base{public:virtual void Fun1(){printf("Call Derived Fun1\n");}virtual void Fun5(){printf("Call Fun5\n");}};typedef void(*Fun)(void);void main(void){Derived lDerived;int** lpVtableAdd = (int**)&lDerived;for (int i = 0; i< 5; ++i){Fun lpFun = (Fun)(lpVtableAdd[0][i]);lpFun();}printf("First add of Base:%d, and first virtual Fun add:%d\n",(int*)(&lDerived),&lpVtableAdd);}

看懂了這些代碼 應該對虛函數表就清楚啦吧，O(∩_∩)O~