c21.cpp

来自「《C++程序设计习题及解答》配套代码VC版」· C++ 代码 · 共 59 行

// c21.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"

#include <iostream.h>

int b = 1;

int f();
int g();
int h();

int main(int argc, char* argv[])
{
	int a;
	a = f() + g() + h();
	cout << a << endl;

	return 0;
}

int f()
{
	switch( b )
	{
	case 1: cout << "f() first\n"; break;
	case 2: cout << "f() second\n"; break;
	case 3: cout << "f() last\n"; break;
	}
	b++;
	return 1;
}

int g()
{
	switch( b )
	{
	case 1: cout << "g() first\n"; break;
	case 2: cout << "g() second\n"; break;
	case 3: cout << "g() last\n"; break;
	}
	b++;
	return 2;
}

int h()
{
	switch( b )
	{
	case 1: cout << "h() first\n"; break;
	case 2: cout << "h() second\n"; break;
	case 3: cout << "h() last\n"; break;
	}
	b++;
	return 3;
}