C语言函数实现交换两个整型变量

#define _CRT_SECURE_NO_WARNINGS 1#include<stdio.h>#include<string.h>void Swap(int* pa, int* pb){int temp = 0;temp = *pb;*pb = *pa;*pa = temp;}int main(){int a = 20;int b = 30;printf("交换前a=%d b=%d\n", a, b);Swap(&a,&b);printf("交换后a=%d b=%d\n", a, b);return 0;}