一些处理器在处理无符号整型数要比处理符号整型数快得多，这也是一个好的习惯，有利于代码的自我文档化(self - documenting)。
Some processors can handle unsigned integer arithmetic considerably faster than signed (this is also good practice, and helps make for self-documenting code).
当令牌符号处理在这种情况下更复杂时，处理器的结构非常类似于这篇文章中构建的那样。
While the token processing in such a case is more involved, the structure of the handlers is quite similar to what is being built in this article.
路由处理器摘取出这个令牌符号，并且会根据它代表的成员资格级别来路由这个消息。
The routing handler extracts the token and routes the message based on the membership level it represents. The following header format is used.
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