c语言实现字节逆序，类似hton函数

#include <stdio.h>

int main()
{
    int n = 0x22445566;
    int b = ((n & 0x000000ff) << 24)|((n & 0x0000ff00) << 8)
          | ((n & 0x00ff0000) >> 8) | ((n &0xff000000) >> 24);

    printf("n = %X\nb = %X\n", n, b);
}