图7是一个简单请求的序列关系图。

Figure 7 is the sequence diagram of a simple request.

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对于简单请求，这没有任何优势。

For simple requests, this does not bring any advantages.

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注意在本例中代码仅仅处理一个简单请求。

Note that in this basic example, the code only accepts a single connection.

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