[C++知识库]位操作符111

#include <stdio.h>
//位操作符 1 &按位与 2 按位或 3 按位异或
//int main()
//{
//    int a =3;
//    int b= 5;
//    int c = a&b;
//    //0000000000000000000000000000011
//    //0000000000000000000000000000101
//    //0000000000000000000000000000001
//    printf("%d",c);
//    return 0;
//}
//int main()
//{
//    int a =3;
//    int b= 5;
//    int c = a|b;
//    //0000000000000000000000000000011
//    //0000000000000000000000000000101
//    //0000000000000000000000000000111
//    printf("%d",c);
//    return 0;
//}
//int main()
//{
//    int a =3;
//    int b= 5;
//    int c = a^b;
//    //0000000000000000000000000000011
//    //0000000000000000000000000000101
//    //0000000000000000000000000000110
//    printf("%d",c);
//    return 0;
//}
//不创建第3个变量，实现两个值的互换
int main()
{
    int a = 3;
    int b = 5;
    printf(" a = %d,b = %d",a,b);
    //1 加减法 - 可能会溢出
//    a = a + b;
//    b = a - b;
//    a = a - b;
    //2 异或的方法
    a = a^b; //8
    b = a^b; //3
    a = a^b; //5
    //a 00000000000000000000000000011
    //b 00000000000000000000000000101
    printf(" a = %d,b = %d",a,b);
    return 0;
}