sample2.cpp

C++的函数重载

#include<iostream.h>
int min(int a, int b);
int min(int a, int b, int c);
int min(int a, int b, int c, int d);

void main()
{
	cout << min(2, 3) << endl;
	cout << min(3, 4, 5) << endl;
	cout << min(4, 5, 6, 7) << endl;
}

int min(int a, int b)
{
	if(a > b)
		return b;
	else
		return a;
}

int min(int a,int b,int c)
{
	int t = min(a, b);
	return min(t, c);
}

int min(int a, int b, int c, int d)
{
	int t1 = min(a, b);
	int t2 = min(c, d);
	return min(t1, t2);
}