[Swift 开发] 读取和修改二进制某一位的数据

let initialBits: UInt8 = 0b00001111

//修改成什么值
let on_off = 0

//修改第几位数据
var location = 1

1.读取数据

var result = initialBits >> location & 1
// 转化为字符串
var stringOfInvertedBits = String(result, radix: 2)
print(stringOfInvertedBits)

2.修改某一位的数据

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) // 转化为字符串
print(stringOfInvertedBits)