詳細如下：

 1 class TestDict:
 2     name = "wyb"
 3     age = "21"
 4 
 5     def __init__(self):
 6         self.gender = ‘male‘
 7 
 8     def keys(self):                         # 獲取字典的鍵
 9         s = (‘name‘, ‘age‘, ‘gender‘)
10         return s
11 
12     def __getitem__(self, item):            # 獲取鍵對應的值
 

13         return getattr(self, item)          # getattr獲取對象下某個屬性的值
14 
15 
16 o = TestDict()
17 print(dict(o))          # 創建字典 -> 先調用對象下的keys方法再用o["xxx"]獲取值([]本質上是調用對象下的__getitem__方法)

python對象轉字典