您可以将承载帮助内容的服务器和应用程序指向帮助服务器(见图7)。

Instead, you can have a server hosting help content and your application pointing to the help server (see Figure 7).

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如果目标服务地址变更，可以很容易地将客户机应用程序指向新的服务端点。

If the target service address changes, you can easily point the client application to the new service endpoint.

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接下来，添加您的 database.yml 文件，将您的应用程序指向之前创建的 DNS 别名，清单 6 显示了这个配置。

Next, add your database.yml file to point your application to the DNS alias you created previously.

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And if the test is true, it will change the value of this program counter to point to some other place in the memory, some other point in that sequence of instructions, and you'll keep processing.

如果测试结果为真，它会改变程序计数器的结果去,指向记忆存储器里的其他地方，指令序列里的其他地方，然后你会继续这个过程。

麻省理工公开课 - 计算机科学及编程导论课程节选