You should restrict this strategy to extending very simple code.
应当把这个策略局限在扩展非常简单的代码上。
This keeps the server code immensely simple, while still running very quickly.
这使服务器代码非常简单,而运行的速度仍非常快。
The code is very simple, but it does an impressive amount of work, as you shall see.
代码非常简单,但是您将看到它做了非常多的工作。
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