一段有趣的函数

#include<iostream>
using namespace std;
void a(){

	cout<<"a\n";
}
void b(){
	cout<<"b\n";
}
int c(int* val){
	cout<<"c  "<<val<<"  "<<*val<<endl;
	return *val;
}
void main()
{	
	
	cout<<"\n\nmain\n";

	cout<<"main函数地址 "<<main<<endl;
	cout<<"a函数地址 "<<a<<endl;
	cout<<"b函数地址 "<<b<<endl;
	cout<<"c函数地址 "<<c<<endl;
	int add;
	cout<<"输入需调用的函数地址:";

	cin>>hex>>add;

	int (*fun)();

	fun=(int (*)())add;

	cout<<"返回值 "<<fun()<<endl;


}

<img src="//img-blog.csdn.net/20140615233008046?
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