简单的钢琴应用程序，适合初学者。

Simple Piano application is made for beginners.

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聊天系统！适合初学者学习，其中有关于socket类的应用！ - Chat ！

Suitable for beginners to learn, including the application of class on the socket!

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SQL教程，始于初学者SQL非常适合应用于嵌入式设备，同时，可以应用于一些稳定的，很少修改配置的应用程序中。

SQL Tutorial, SQL is suitable for beginners starts embedded devices, and can be applied to some stability, with little to modify the configuration of the application.

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