c08_02_1.c

it can help you know C++ souce program quckily

#include <stdio.h>

int main()
{
	int		a,b;		/*定义两个需交换的整型变量*/
	int		temp;		/*定义一个交换用的中间变量*/
	
	printf("请输入两个需交换的整数：a, b\n");
	scanf("%d,%d",&a,&b);
	printf("交换之前：a = %d  , b = %d\n", a, b); 
	temp = a;
	a = b;
	b = temp;
	printf("交换之后：a = %d  , b = %d\n", a, b);

	return 0;
}