python中，请教属性访问属性的过程讲解

Question

问题遇到的现象和发生背景

理不清楚在代码中，属性访问属性是怎样执行的，请讲解属性访问属性的过程

问题相关代码，请勿粘贴截图

>>> class C:
    def __init__(self,size=10):
        self.size = size
    def getSize(self):
        return self.size
    def setSize(self,value):
        self.size = value
    def delSize(self):
        del self.size
    x = property(getSize,setSize,delSize)

    
>>> 
>>> c = C()
>>> c.x
10
>>> c.x = 12
>>> c.x
12
>>> x.size
Traceback (most recent call last):
  File "<pyshell#16>", line 1, in <module>
    x.size
NameError: name 'x' is not defined
>>> c.size
12
>>> del c.size
>>> c.size
Traceback (most recent call last):
  File "<pyshell#19>", line 1, in <module>
    c.size
AttributeError: 'C' object has no attribute 'size'

运行结果及报错内容

我的解答思路和尝试过的方法

我想要达到的结果

Answer 1

```python

class C:

    def __init__(self, size=10):
        self.size = size
    def getSize(self):
        return self.size
    def setSize(self, value):
        self.size = value
    def delSize(self):
        del self.size
    x = property(getSize, setSize, delSize)


c = C()
print(c.size)  # 访问初始化属性
print(c.x)  # 获取时,默认调用x的第一个参数'getSize'
c.x = 20  # 当你想赋值时，调用x的第二个参数，'setSize',隐式调用
print(c.x)
c.delSize()  # 删除属性，显示调用

```