python对象转字典

 1 class TestDict:
 2     name = "wyb"
 3     age = "21"
 4 
 5     def __init__(self):
 6         self.gender = ‘male‘
 7 
 8     def keys(self):                         # 获取字典的键
 9         s = (‘name‘, ‘age‘, ‘gender‘)
10         return s
11 
12     def __getitem__(self, item):            # 获取键对应的值
13         return getattr(self, item)          # getattr获取对象下某个属性的值
14 
15 
16 o = TestDict()
17 print(dict(o))          # 创建字典 -> 先调用对象下的keys方法再用o["xxx"]获取值([]本质上是调用对象下的__getitem__方法)