Python3 @property的使用(用调用属性的方式调用方法)

例子一:

# @property的使用
class PropertyClass(object):
    @property
    def score(self):
        return self.__score
    @score.setter
    def score(self, value):
        # 用来判断赋值时是否进入该函数
        print("Your in score.setter")
        self.__score = value
propertyExam = PropertyClass()
propertyExam.score = 100
print(propertyExam.score)

例子二:

# @property的使用
class Screen(object):
    def __init__(self, width=None, height=None):
        self.width = width
        self.height = height
    @property
    def sWidth(self):
        return self.width
    @property
    def sHeight(self):
        return self.height
    @sWidth.setter
    def sWidth(self, width):
        self.width = width
    @sHeight.setter
    def sHeight(self, height):
        self.height = height
    @property
    def resolution(self):
        return self.width * self.height
screen = Screen()
screen.sWidth = 1366
screen.sHeight = 768
print(screen.sWidth)
print(screen.sHeight)
# 只读属性调用
print(screen.resolution)