我按位与没问题啊。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/b7fd5266d0160924eeda1a4ed80735fae7cd34e3?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
#include<
stdio.h>
int main()
{
long long n1,n2,n3;
n1=4294967295;//1111 1111,1111 1111,1111 1111,1111,1111
n2=4294967294;//1111 1111,1111 1111,1111 1111,1111,1110
printf("long long型大小为%d位\n",sizeof(n1)*8);
printf("1111 1111,1111 1111,1111 1111,1111,1111(
十进制4294967295)\n");
printf("按位与\n");
printf("1111 1111,1111 1111,1111 1111,1111,1110(十进制4294967294)\n");
printf("=%I64d",n1&n2);
return 0;
}