半自动摄氏度转华氏度
class Celsius:
def __init__(self, value = 0):
self.value = float(value)
def __get__(self, instance, owner):
return self.value
def __set__(self, instance, value):
self.value = float(value)
class Fahrenheit:
def __get__(self, instance, owner):
return instance.cel * 1.8 + 32
def __set__(self, instance, value):
instance.cel = (float(value) - 32) / 1.8
class Temperatuure:
cel = Celsius()
fah = Fahrenheit()
running以后写:
temp = Tempertuure()
^
写数字（默认为零）
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