相关疑难解决方法(0)

如何使用位移执行乘法36？是不是只能乘以2的幂？例如:

unsigned x = 4; // binary 00000000 00000000 00000000 00001000
unsigned y = x << 3; // multiply by 8, resulting in binary 00000000 ... 00100000

谢谢!