Python 类变量和实例变量的黑白区别

class myclass:    class_variable = "this is a class variable"print(myclass.class_variable)  # output: this is a class variableobj1 = myclass()obj2 = myclass()print(obj1.class_variable)      # output: this is a class variableprint(obj2.class_variable)      # output: this is a class variable

class MyClass:    def __init__(self, instance_variable):        self.instance_variable = instance_variableobj1 = MyClass("obj1 instance variable")print(obj1.instance_variable)  # Output: obj1 instance variableobj2 = MyClass("obj2 instance variable")print(obj2.instance_variable)  # Output: obj2 instance variable