编辑代码

class Thermometer{
    var centigrade:Double
    var faherenheit:Double{
        get{
            return 32+centigrade*1.8
        }
        set{
            centigrade = (newValue-32)/1.8
        }
    }
    init(centigrade:Double){
        self.centigrade=centigrade
    }
}
var huashidu = Thermometer(centigrade: 10)
print("摄氏度为:\(huashidu.centigrade),华氏度为:\(huashidu.faherenheit)")