通过会员类，你可以创建用户并管理他们，每一个用户都由一个会员类的实例所代表。

From the Membership class, you can create and manage users, each of whom is represented by an instance of the MembershipUser class.

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相反，每个实例代表一个服务器。

Instead, each instance represents a server.

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每个HTTP方法代表资源上的一个读或写操作，每个HTTP URI代表单个的资源实例。

Each HTTP method represents a read or write operation on a resource, and each HTTP URI represents an individual resource instance.

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