Listings 6 and 7 show the UserManager interface and its implementation.

清单6和7展示了UserManager接口及其实现。

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This is achieved by using the UserManager object that can be obtained from the OS module, like below.

该任务是使用UserManager对象实现的，这个对象可以像下面这样从OS模块获得。

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Similarly, group operations are possible by using the addgroup() and deletegroup() methods in the UserManager object.

类似地，组操作也可以使用 UserManager 对象中的 addgroup() 和 deletegroup() 方法来完成。

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