在界定um时有什么良好做法?
例如,我有一个人班。 就这一类而言,我选择使用一种具有《仲裁示范法》和《公平贸易法》价值的内容。
Should the enum be defined inside the Person class or separately? Should the enum be defined as private or public? Also, do you have any further advice that would make using an enum as flexible as possible?