[Swift 開發] 讀取和修改二進制某一位的數據

let initialBits: UInt8 = 0b00001111

//修改成什麼值
let on_off = 0

//修改第幾位數據
var location = 1

1.讀取數據

var result = initialBits >> location & 1
// 轉化爲字符串
var stringOfInvertedBits = String(result, radix: 2)
print(stringOfInvertedBits)

2.修改某一位的數據

var result = initialBits

if on_off == 0
{
    result = ~initialBits | 1 << location
    result = ~result
}
else if on_off == 1
{
    result = initialBits | 1 << location
}

var stringOfInvertedBits = String(result, radix: 2) // 轉化爲字符串
print(stringOfInvertedBits)