python；如何通过类中的多个方法传递一个参数

class MyClass:
    def __init__(self, param):
        self.param = param

class MyClass:
    def __init__(self, param):
        self.param = param

    def method1(self):
        # 使用self.param

    def method2(self):
        # 使用self.param

    def method3(self):
        # 使用self.param

my_object = MyClass(my_param)

my_object.method1()
my_object.method2()
my_object.method3()