特别注意代码中的：

&CFunction::

void (CFunction::*ptrFunc[4])();

(this->*ptrFunc[i])();

c->UseFunction();//只能用指针调用，用.调用会出错

#include <iostream>

typedef void (*PTRFunction)(void *);//还不清楚在类里面怎么用

class CFunction

{

public:

    CFunction(void)

    {

        ptrFunc[0] = &CFunction::functionA;

        ptrFunc[1] = &CFunction::functionB;

        ptrFunc[2] = &CFunction::functionC;

        ptrFunc[3] = &CFunction::functionD;

    }

    ~CFunction(void);

public:

    void (CFunction::*ptrFunc[4])();

    void UseFunction()

    {

        for (int i=0;i<4;i++)

        {

            (this->*ptrFunc[i])();

        }

    }

public:

    void functionA(void)

    {

        std::cout<<"functionA"<<std::endl;

    }

    void functionB(void){

        std::cout<<"functionB"<<std::endl;

    }

    void functionC(void){

        std::cout<<"functionC"<<std::endl;

    }

    void functionD(void){

        std::cout<<"functionD"<<std::endl;

    }

};

int main()

{

    CFunction *c = new CFunction();

    c->UseFunction();

    system("pause");

    return 0;

}