设计了IIR低通滤波器，需要的可以参考一下子的

经常使用Protel99se的同学们一定都觉得它的鼠标功能不尽不意吧，这里给大家提供一个对Protel99se鼠标功能的增强工具。可以支持用鼠标对图象进行放大，移动，旋转等功能。在此向作者表示感谢-often use to the students who will feel the mouse function not unwittingly bar, Here we provide to the one pair of Protel99se function in the mouse tool. Can support the use of the mouse on the image to enlarge it, moving, rotating, and other functions. Like to thank the authors said. !

很经典的连连看源代码，与众生共享，大家可以随便下载。-Very classic Lianliankan source code, and all living creatures share, everyone can freely download.

basic image prossesing

NETEM 的预测试题-NETEM questions

有很多 猜数字 简单的记事本 贪吃蛇 同学录 -many simple tones in the notebook huge memory website

波浪模拟UDF程序，可以模拟二位数值水槽产生波浪，便于应用fluent求解波浪模拟问题-UDF wave simulation procedures

一个简单的猜数字游戏的编程,编译已经完全通过,绝无问题-猜数字a simple game programming, the compiler has completely passed, no problem

串口数据采集实时显示程序 包含了串口通信和实时显示的源代码-Serial data acquisition in real-time display program includes a serial communications and real-time display of the source code

封包分析工具-Packet analysis tool

复数类，傅立叶类（DFT,IDFT,FFT,IFFT)，BIGINT类（其中包含用FFT优化乘法mul_fft）-complex class，fourier class（DFT,IDFT,FFT,IFFT)，BIGINT class（including FFT optimized multiplication mul_fft）