大多数Rails应用程序都会重复访问多个条目，例如用户对象。

Most Rails applications repetitively access several items, such as user objects.

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系统中的另一个高层对象是用户对象，它允许为访问站点的用户设置帐号。

Another top-level object in the system is the user object, which allows you to set up accounts for different users coming to your site.

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它从请求对象中读取所有参数，并将其在用户对象中用set方法进行设置。

It reads all the parameters from the request object and sets it in the user object, using the set methods.

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