深入理解计算机系统_C语言中的位运算

简介

C语言中的位运算，即将数值按位做或、与、取反、异或、同或等运算。

代码

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#include "stdafx.h"
void show_byte(unsigned char* start,int len)
{
	int i;
	for (i=0;i<len;i++)
	{
		printf("%.2x",start[i]);
	}
	printf("\n");
}


int _tmain(int argc, _TCHAR* argv[])
{
	int data1 ,data2 ;
	scanf("%d",&data1);
	scanf("%d",&data2);
	short m_Result;
	printf("%d按位存储为：",data1);
	show_byte((unsigned char*)&data1,sizeof(int));
	printf("%d按位存储为：",data2);
	show_byte((unsigned char*)&data2,sizeof(int));
	m_Result = data1&data2;
	printf("按位与运算：%d & %d = %d ，按位存储为：",data1,data2,m_Result);
	show_byte((unsigned char*)&m_Result,sizeof(int));

	m_Result = data1|data2;
	printf("按位或运算%d | %d = %d，按位存储为：",data1,data2,m_Result);
	show_byte((unsigned char*)&m_Result,sizeof(int));

	m_Result = ~data1;
	printf("按位取反运算~ %d = %d，按位存储为：",data1,m_Result);
	show_byte((unsigned char*)&m_Result,sizeof(int));

	m_Result = data1^data2;
	printf("按位异或运算%d ^ %d = %d，按位存储为：",data1,data2,m_Result);
	show_byte((unsigned char*)&m_Result,sizeof(int));
	return 0;
}

结果