In this article, I've run through the design of a library for processingcommand line arguments as an example of reflection in action.
在本文中，我讲述了一个用于处理命令行参数的库的设计过程，作为反射的一个实际的例子。
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You can handle the actual processing of command line arguments with a single call, but the application first needs a way to define its particular parameters to the library.