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)
//输出：1
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)
//输出：1101
