main(){ unsigned c1=0xff,c2=0x00;c1=c2|c1>>2;c2=c1^0236;printf("%x,%x\n”,c1,c2);} 的答案是?A）0x3f,0XA1 B）3f,A1 C）ffff,61 D）3f,a1 这是选项.麻烦一下.要解释的!

main(){ unsigned c1=0xff,c2=0x00;c1=c2|c1>>2;c2=c1^0236;printf("%x,%x\n”,c1,c2);} 的答案是?A）0x3f,0XA1 B）3f,A1 C）ffff,61 D）3f,a1 这是选项.麻烦一下.要解释的!
main(){ unsigned c1=0xff,c2=0x00;c1=c2|c1>>2;c2=c1^0236;printf("%x,%x\n”,c1,c2);} 的答案是?
A）0x3f,0XA1 B）3f,A1 C）ffff,61 D）3f,a1 这是选项.麻烦一下.要解释的!

main(){ unsigned c1=0xff,c2=0x00;c1=c2|c1>>2;c2=c1^0236;printf("%x,%x\n”,c1,c2);} 的答案是?A）0x3f,0XA1 B）3f,A1 C）ffff,61 D）3f,a1 这是选项.麻烦一下.要解释的!
A）0x3f,0XA1
c1=c2|c1>>2
=0xff|0x00>>2 //先算或|
=0xff>>2
=0x3f
c2=c1^0236
=0x3f^0236 //化为二进制按位异或00111111^10011110=10110001=0xa1
=0xa1