Some object-oriented languages use the terms class data and class methods, meaning that the data and methods exist only for the class as a whole, and not for any particular objects of the class.

• 有些面向对象的语言使用了“类数据”和“类方法”这两个术语。它们意味着数据和方法只是为作为一个整体的类而存在的，并不是为那个类的任何特定对象。