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说明：  本源代码来自ABAQUS在隧道及地下工程中的应用一书，供大家学习使用。(This source code comes from the application of ABAQUS in tunnel and underground engineering for everyone to learn and use.)

本程序是一个简单的键盘控制程序响应的例程。-This procedure is a simple keyboard control procedures in response to the routine.

说明：  calculate the result, more execises and more experience.

说明：  变分模态分解 信号处理方法 数据序列平稳化。(The data sequence of the signal processing method of variational mode decomposition is smoothed.)

小游戏的名字叫斗地主，和平常玩的斗地主时一样的-Name game斗地主, and usually when playing the same斗地主

说明：  ? 实现图书信息、类别、出版社等信息的管理； ? 实现读者信息、借阅证信息的管理； ? 实现图书的借阅、续借、归还管理； ? 实现超期罚款管理、收款管理； ? 创建触发器，分别实现借书和还书时自动更新图书信息的在册数量；(Realize the management of books information, categories, publishing houses and other information; Realize the management of reader information and borrowing card information. To realize the management of book borrowing, renewal and return; Achieve the management of overdue fines and receipts; Create triggers to automatically update the number of books in the book when borrowing and returning books, respectively.)

说明：  均匀线阵、圆阵、平面阵，结合空间谱估计方便理解(Uniform linear array, circular array, plane array, combined with spatial spectrum estimation is easy to understand)

用NIOSII生成的VGA显示程序,可以在显示器上显示通讯内容

Tools for OPUS Library for Asterisk

实现简单的模拟angry birds小游戏(Simple analog angry birds game)