初始化实例变量的大多数Pythonic方法

class MyClass:
    def __init__(self):
        self.variable1 = 10
        self.variable2 = "Hello"

class MyClass:
    def __init__(self, value1, value2):
        self.variable1 = value1
        self.variable2 = value2

class MyClass:
    def __init__(self, value1=10, value2="Hello"):
        self.variable1 = value1
        self.variable2 = value2

class MyClass:
    def __init__(self, **kwargs):
        self.__dict__.update(kwargs)