Scroll up and examine the system output statements to see the services being run and the negotiated responses.
向上滚动并检查系统输出语句，查看正在运行的服务和协商的响应。
If you run this code with a larger number for the Fibonacci sequence index (say, 12), you'll end up watching output scroll by for a long time.
如果对大的斐波纳契数列(比如说12)使用这段代码，将会看到长时间的滚动输出。
If you're working from a console that doesn't scroll, you may want to redirect the output to a file so that you can peruse it via less or read it in a text editor.
如果您在一个控制台上工作，不要上下滚动，您可能想将输出重新指向一个文件，这样您可以通过less详细阅读或者在一个文本编辑器中阅读。
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