It is essential to design class teaching aesthetically in concrete teaching contents and aspects.

在具体的教学内容和环节上，必须按照美的规律来对课堂教学进行设计。

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Then introduces the detailed design and implementation of each module, mainly including concrete implementation flows, Class and function design and coding;

然后描述了各模块的详细设计与实现，主要包括了具体流程，类与函数的设计以及编码实现；

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