返回：贺老师课程教学链接

阅读并运行下面的程序，掌握按位运算的规则。
(1)

#include "stdio.h"
int main()
{
    char x=040;
    printf("%d\n",x=x<<1);
    return 0;
}

(2)

#include "stdio.h"
int main()
{
    unsigned int a,b;
    a=7^3;
    b=~4&3;
    printf("%d,%d\n",a,b);
    return 0;
}

(3)

#include "stdio.h"
int main()
{
    char  x=040;
    printf("%o\n",x<<1);
    return 0;
}

(4)

#include "stdio.h"
int main()
{
    char a=0x95,b,c;
    b=(a&0xf)<<4;
    c=(a&0xf0)>>4;
    a=b|c;
    printf("%x\n",a);
    return 0;
}

(5)

#include "stdio.h"
int main()
{
    unsigned char a=2,b=4,c=5,d;
    d = a|b;
    d &= c;
    printf("%d\n",d);
    return 0;
}

(6)

#include "stdio.h"
struct bit
{
    unsigned  a:2; //这里定义的称之为位域，2代表占一个字节中的2位
    unsigned  b:3; //掌握详情，请搜索“位域”
    unsigned  c:4;
    int i;
} data;
int main()
{
    data.b=2, data.a=8;   //因为data.a只占2位，所以赋值为8后，只保存8的后2位，结果为0
    printf("%d %d\n",data.a, data.b);
    return 0;
}