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C++中级培训教材,中高级水平教材，值得一看(C++ Intermediate training materials, high-level teaching materials, worth a visit)

读取两日期，并算两个日期间的天数。示范日期类型的操作。　(read two dates, and count the period of two days. Model date type of operation.)

透射电镜（TEM）分析中简单快捷的计算晶面指数，晶面夹角等晶体结构数据。(In transmission electron microscopy (TEM) analysis, crystal structure data such as the indices of crystallographic plane and crystal plane angle can be calculated easily and quickly.)

无人机航迹规划论文，非常经典，可以一看，大家共同学习。(UAV trajectory planning)

利用FDTD计算二维光子晶体带隙的matlab源程序(FDTD)

频散曲线求解，利用matlab进行lamb的求解，结果与数值分析方法相比，误差较小，对试验结果具有重要参考价值。通过仿真试验，结果结果比较好。(To solve the dispersion curve, using o solve the dispersion curve, using matlab to solve lamb, the results compared with the numerical analysis method, the error is small, the test results have important reference value. Results through simulation experiment, the result is better.)

说明：  基于强化学习算法A3C实现的一个小案例。(A small case based on the A3C implementation of the reinforcement learning algorithm.)

QQwry IP数据库，用于判断IP所属地区，2019版(QQwry IP Database, Used to Judge IP Areas, 2019 Edition)

PCI局部总线，对于做PCI卡的人来说，非常有帮助-PCI Local Bus, the PCI card to do people, very helpful

VIRTOOLS初学案例，使用BB控制第1人称摄像机(VIRTOOLS beginner cases, the use of first person camera control BB)