这个类显然可以用于存储有关某些日期的信息(没有时区信息;假设所有日期都以UTC格式显示)。 这里我们有__init__,一个Python类实例的典型的初始化器,它接收参数作为一个典型的实例方法,具有第一个非可选参数(self),它保存对新创建的实例的引用。 classmethod 我们有一些任务可以很好地使用类方法。 假设我们要创建大量的Date类实例
Could someone explain to me the meaning of @classmethod and @staticmethod in python? I need to know the difference and the meaning. As far as I understand, @classmethod tells a class that it's a method which should be inherited into subclasses, or... something. However, what's the point...
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Python 中的 classmethod 和 staticmethod 有什么具体用途？https://stackoverflow.com/questions/12179271/...
It takes the first object and inserts the first parameter. Except in this, it is a little more clever. When we do this transformation on class method, we take the type of D. So this call turns into class method meaning, d.cls_method(1,2) ...
https://stackoverflow.com/questions/136097/difference-between-staticmethod-and-classmethod Maybe a bit of example code will help: Notice the difference in the call signatures offoo,class_fooandstatic_foo: classA(object):deffoo(self, x):print(f"executing foo({self},{x})")@classmethoddefclass...