It takes minimal effort to ensure that the server not only finished with a request, but returned an "Everything is OK" status code.
它花费了最小的努力来确保服务器不但完成了一个请求，而且还返回了一个“一切良好”的状态代码。
Whatever choices you make, though, it begins with handling the status code returned from the server.
然而不管采用哪种选择，都需要从对服务器上返回的状态代码开始入手进行处理。
Every request to a server is recorded and assigned a status code, which describes how the server responded.
每个发送给服务器的请求都记录下来，并且指定了一处状态码，这个码告诉服务器如何响应请求。
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