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说明：  傅立叶变换用于电力系统谐波分析,全是用c++编的很有价值(Fourier transform is very valuable for harmonic analysis of power system.)

本程序是ping的源程序-this program is the source ping

基于udp通信的客户端源代码，可以与基于udp通信的服务器端实现通话-server for udp communication

VC++编写的飞机仪表显示，可以直接修改使用，显示为一个可以飞行的3D飞机(VC++ Prepared aircraft instrument display, you can directly modify the use, appears as a 3D plane can fly)

说明：  实现了D* Lite在matlab中的仿真(Realize the simulation of D* Lite in matlab)

说明：  Copula理论及应用，绘制经验分布函数图和核分布估计图(Copula theory and application, draw empirical distribution function graph and kernel distribution estimation graph)

VC 实现刷新桌面实例，精选学习源码，很好的参考资料。(VC to refresh the desktop case, select learning source code, a good reference.)

Digital image face detection had been developing so much in this last decade. The searching for the best method is still walking until today. This face detection research is using color model based segmentation method combined with template matching. There are 4 main process in this research. First, motion detection is used to minimize the size of the image by subtracting image n with image n+m. Then, by using YCbCr color model based segmentation, the image is separated by skin color area and non-skin color area. Third, is to reduce the noise by using the blurring way and by filtering its wide. The last one is matching the area that last with template that has been prepared to detect which area is face. The result of the research, from 217 images and 10 videos , shows that this method reach up to 70,5 face detection accuration procentage.

用Ｅｖｃ开发的Ｐｉｎｇ、ＵＤＰ协议演示程序实例源码-Evc development with the Ping, UDP demo program source code examples

设计一个邮寄包裹的收费系统，在邮寄类型确定的情况下，包裹的邮资由包裹的重量a，邮寄距离b，保价金额c三个参数决定。 如：普通邮件(RegularMail)的邮费 = 3(a+b/100)+0.01c 挂号邮件(RegisterdMail)的邮费 = 4(a+b/100)+0.02c等等 请设计一个系统，计算包裹的邮资。系统使用图形用户界面，用户在图形用户界面选择邮寄类型，再输入重量、距离和报价金额，单击确定按钮系统就计算出包裹的邮资。要求系统能够灵活的增减邮寄类型和修改某种邮寄类型的邮资计算方法。(Design of a parcel of charge system, the type identified in the case of mail, parcels by the weight of the parcel postage a, mailing distance b, c insured amount three parameters. Such as: regular mail (RegularMail) postage = 3 (a+b/100)+0.01c registered mail (RegisterdMail) postage = 4 (a+b/100)+0.02c etc. Please design a system to calculate the parcel postage. System using the graphical user interface, users select the mail type graphical user interface, and then enter the weight, distance and offer amount, click the OK button the system will calculate the parcel postage. Require the system to increase or decrease mailing flexible type and modify some types of mailing postage calculation.)