Examine the sample code and generated source below for actual illustrations of this discussion.
请研究下面的示例代码和生成的源代码，通过实际的例子巩固本文讨论的内容。
Feel free to explore this sample and its source code.
您可以随意研究本样例及其源代码。
Before you start the tutorial, download the sample source code and binaries for the collection.
开始本教程的学习前，请下载集合的示例代码和二进制文件。
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