判断大小端

题目：你的电脑存储方式是大端存储还是小端存储

<span style="font-family:Microsoft YaHei;font-size:18px;">//判断大小端
#include <stdio.h>
#include<stdlib.h>
int main()
{
  //union w
  //{
  //  int a;  //4 bytes
  //  char b; //1 byte
  //} c;
  //c.a = 1;
  //if (c.b == 1)
  //  printf("It is Little_endian!\n");
  //else
  //  printf("It is Big_endian!\n");
  //system("pause");

  int a = 0x01;
  char * p = (char*)& a;
  if (*p == 1)
  {
    printf("little endian\n");
  }
  else
  {
    printf("big endian\n");
  }
  system("pause");
  return 0;
}</span>      

正如上图所示，小端模式下的存储方式：高地址存放高位数据，低地址存放低位数据