位移操作符

移位运算符允许程序员通过将所有位向左或向右移位来调整整数。下图显示了将值向左移动一位数的影响。

左移

uint value = 15;              // 00001111
 
uint doubled = value << 1;    // Result = 00011110 = 30
uint shiftFour = value << 4;  // Result = 11110000 = 240

右移

uint value = 240;             // 11110000
 
uint halved = value >> 1;     // Result = 01111000 = 120
uint shiftFour = value >> 4;  // Result = 00001111 = 15