14_while语句

//_14_while语句
//_14_main.cpp
#include <stdio.h>
#include <stdlib.h>

void change(int,int);

int main()
{
	int  temp,num1,num2;
	int x=0,y=0;
	printf("请输入两个正整数：");
	scanf("%d %d",&num1,&num2);
	if(num1>num2)//令num1为较小者
		change(num1,num2);
	x = num1;
	y = num2;
	while(x!=0)
	{
		temp = y%x;//余数
		y = x;
		x = temp;
	}
	printf("最大公约数：%d",y);
	printf("最小公倍数：%d\n",(num1*num2)/y);
	system("pause");
	return 0;
}

void change(int x,int y)
{
	int temp = x;
	x = y;
	y = temp;
}