与类相关的一些指针

测试代码：

#include<iostream>
using namespace std;

class myclass{
 int a;
 int b;
public:
 int c;
 void set_ab(int x,int y,int z){a=x;b=y;c=z;}
 int axbxc(){return a*b*c;}
 void show(){cout<<"a is "<<a<<endl<<"b is "<<b<<endl<<"c is "<<c<<endl;}
};

int main()
{
 int (myclass::*pp)();
 myclass cl;
 myclass *p;
 int *p1;

 pp=&myclass::axbxc;

 p=&cl;

 p1=&cl.c;

 p->set_ab(1,2,3);
 cl.show();
 cout<<"aXBXC is "<<(cl.*pp)()<<endl;

 *p1=4;
 p->show();
 cout<<"aXBXC is "<<(cl.*pp)()<<endl;
 
 return 0;
}

 

 

测试结果：

a is 1
b is 2
c is 3
aXBXC is 6
a is 1
b is 2
c is 4
aXBXC is 8
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