f0507.cpp

it is a usefull thing

//=====================================
// f0507.cpp
// 函数指针数组
//=====================================
#include<iostream>
using namespace std;
//-------------------------------------
typedef void (*MenuFun)();
void f1(){ cout<<"good!\n"; }
void f2(){ cout<<"better!\n"; }
void f3(){ cout<<"best!\n"; }
//-------------------------------------
int main(){
  MenuFun fun[]={f1,f2,f3};
  for(int choice=1; choice; ){
    cout<<"1-----display good\n"
         <<"2-----display better\n"
         <<"3-----display best\n"
         <<"0-----exit\n"
         <<"Enter your choice:";
    cin>>choice;
    switch(choice){
      case 1: fun[0](); break;
      case 2: fun[1](); break;
      case 3: fun[2](); break;
      case 0: return 0;
      default: cout<<"you entered a wrong key.\n";
    }
  }
}//====================================