数组反序用异或方式实现

#include<stdio.h>

int main()

{

int arr[7] = { 1, 2, 3, 4, 5, 6, 7 };

int length = 7;
for (int i = 0; i < (length >> 1); ++i)
{
arr[i] = arr[i] ^ arr[length - 1 - i];
arr[length - 1 - i] = arr[i] ^ arr[length - 1 - i];
arr[i] = arr[i] ^ arr[length - 1 - i];
}


for (int i = 0; i < length; ++i)

printf("%d\n", arr[i]);

getchar();

}

运行截图：