bitand比如9的二进制是1001,15的二进制是1111bitand(9,15)=9剩下的,bitor
r1=randint(1,5,[1 2])r2=randint(1,5,[1 2])OR=or(r1,r2)%或(|)BITOR=bitor(r1,r2)%按位或
w