C 语言实例 - 使用引用循环替换数值

a、b、c 三个变量，通过引用按顺序循环替换他们的值。

实例

#include<stdio.h>

void cyclicSwap(int *a,int *b,int *c);

int main()
{
    int a, b, c;

    printf("输入 a, b 和 c 的值: ");
    scanf("%d %d %d",&a,&b,&c);

    printf("交换前:\n");
    printf("a = %d \nb = %d \nc = %d\n",a,b,c);

    cyclicSwap(&a, &b, &c);

    printf("交换后:\n");
    printf("a = %d \nb = %d \nc = %d",a, b, c);

    return 0;
}
void cyclicSwap(int *a,int *b,int *c)
{

    int temp;

    // 交换
    temp = *b;
    *b = *a;
    *a = *c;
    *c = temp;
}

输出结果为：文章源自公式库网-https://www.gongshiku.com/html/202112/c-yuyanshili-shiyongyinyongxunhuantihuanshuzhi.html

输入 a, b 和 c 的值: 1 2 3
交换前:
a = 1 
b = 2 
c = 3
交换后:
a = 3 
b = 1 
c = 2