Class methods can access class variables and class methods directly.

类方法可以直接访问类变量和类方法.

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Long - string variables, for instance, are implicitly pointers, as are class variables.

例如, 长串变量就是隐式指针, 类变量也是.

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In other words they are class variables not instance variables.

换句话说它们是类变量不是实例变量.

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