用宏写一个函数可以将一个数字的奇数位和偶数位互换

#include <stdio.h>#include <stdlib.h>#include <windows.h>#define EXCHANGE(a)\((a&(0x55555555))<<1)|((a&(0xAAAAAAAA))>>1)int main(){int a = 0;printf("Please Enter：");scanf("%d",&a);printf("奇偶位互换后：%d\n",EXCHANGE(a));system("pause");return 0;}