如何获得300的输出？从这段代码？ [英] How do I get output of 300? From this code?

问题描述

#include<stdio.h>
main()
 {
    short int x;
    unsigned char *p=&x;
    *p=44;   //write 44 into first byte x
    *(p+1)=1;      //write 1 into second byte of x
    printf("%d:,x);
}

我尝试了什么：



我无法理解输出是如何300的。

What I have tried:

I didn't able to understand that how the output is 300.

推荐答案

因为您的架构是 little endian [ ^ ]。



使用指针在 44 ，在地址x'+ 1处存储 1 然后 x （两个字节的整数）的值是 1 * 256 + 44 = 300 。

Because your architecture is little endian[^].

Using the pointer you store 44 at 'address of x' and 1 at address of x' + 1. Hence the value of x (a two byte integer) is then 1 * 256 + 44 = 300.

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