Refer to the Downloads section of this article for links to the starter application and the completed application.

参考本文的下载部分，获取启动器应用程序和已完成的应用程序的链接。

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Therefore, we include a starter application that has the business logic coded for you.

因此，本文有一个启动器应用程序，为您提供了业务逻辑代码。

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You have to import this starter application as a part of completing the application.

必须导入这个启动器应用程序，这部分工作是完成应用程序所必需的。

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Start the application and you can choose between building one of the starter models or choose "free build" to create your own models from scratch.

BBC: Lego Factory