[swift]移位運算(Shift Operator)

以底下兩數字為例：

let bin1:UInt8 = 0b11111111 //255
let bin2:UInt8 = 0b00001000 //8

向右位移：

let shiftRightBin1Result = bin1>>1
print(String(shiftRightBin1Result,radix: 2))//01111111

let shiftRightBin2Result = bin2>>2
print(String(shiftRightBin2Result,radix: 2))//00000010

向左位移：

let shiftLeftBin1Result = bin1<<1
print(String(shiftLeftBin1Result,radix: 2))//11111110

let shiftLeftBin2Result = bin2<<2
print(String(shiftLeftBin2Result,radix: 2))//00100000