test1.part04

使用WriteFile 块读写数据-used to read and write data blocks

经典游戏之源程序-中国象棋源代码，供学习和娱乐。-classic games being source-Chinese chess source for learning and entertainment.

一个1MHz的FIR低通滤波器。 ① 时钟信号频率16MHz; ② 输入信号位宽8bits，符号速率16MHz； ③ 要求在Matlab软件中进行FIR滤波器浮点和定点仿真，并确定FIR滤波器抽头系数； ④ 写出测试仿真程序。(A 1MHz FIR low pass filter. (1) The clock signal frequency is 16MHz; (2) The input signal has a bit width of 8 bits and a symbol rate of 16 MHz; (3) Floating-point and fixed-point simulation of FIR filter is required in Matlab software, and tap coefficients of FIR filter are determined. (4) Write the test simulation program.)

C#数据库实例：同学录程序源码附SQL2005数据库文件，编译环境VS2008，可拿去学习C#的SQL数据库编程技巧，都是些基本的数据添加、修改、删除、查询等功能，完成的功能主要是存储同学姓名、电话号码等功能，简单的数据库程序。

硬件控制程序，简单 仅供参考-hardware control procedures, simple is for reference only

说明：  抛物型方程隐格式求解程序 可以自己调整步长 非常方便 还有其他的几个小程序(Implicit schemes for Parabolic Equations)

使用原始套接字实现ping命令的功能,以指定发送报文数。 可以指定发送报文长度。 可以指定发送报文的TTL值-Using raw socket to achieve the function of ping command to specify the number of sent messages. Can specify the length of message sent. Send Message to specify the TTL value

桌球游戏的修改版本，正在完善之中。。。多多指教-billiard revised version of the game is in progress. . . Exhibitions

常用PCB元件封装库4，为一般开发提供方便-PCB components commonly used package database 4, to provide convenience for the general development

说明：  利用matlab的gui设计的带有输入和输出功能的界面图形，实现等距线可视性很强，自己独立编写的数据和图形，学习非常值得,实现压缩图像(Using GUI of MATLAB to design interface graphics with input and output functions, realizing the visibility of isometric line is very strong, the data and graphics written independently by oneself are very worthwhile to learn, and realizing compressed image)