DTMF产生

说明：  单片机利用LCD1602实现多级菜单显示，效果正常(MCU uses LCD1602 to realize multi-level menu display, and the effect is normal.)

说明：  实现stm32f103的 spwm a/d转换，屏幕显示。(it is very good for arm.a/d convert ,lcd screen.)

an example c++ source code on how template is used

实现养老院信息管理系统中老人信息管理功能(Information management system to achieve the elderly in nursing homes information management capabilities)

一个比较简单的PDA条码扫描程序,根据机器型号不同需要调整接口调用DLL(A relatively simple PDA bar code scanner, different models need to be adjusted according to the machine interface to call the DLL)

很出名的交易系统，原理是利用价格超卖超买和最近最高最低价格来进行判断交易信号，同时再入场的信息也可以自己设置，我附上了源码，大家也可以在源码中增加自己的交易筛选信号提高正确率和盈利率。(Well-known trading system, the principle is to use price oversold and overbought and the latest highest and lowest price to judge the trading signal, while re-entry information can also be set by itself, I attached the source code, you can also add their own trading screening signal in the source code to improve the accuracy and profitability.)

wpf自动隐藏窗口 实例

我是一个初学者的MPEG。这是简单的例子将ES PES的源代码，从中我得到了专家系统的结构。

基于C#蓝牙串口通讯系统,可用于WINCE下开发。实现串口的通讯。

学生信息管理系统,具体内容,用VC6.0,MFC,成绩管理系统，用VC和SQL 2000开发，非常不错的一个系统，用户根据不同权限访问数据库，进行添加、修改、查询、删除、打印、备份和还原数据库等操作.. (Student information management system, specific content, using VC6.0, MFC, performance management system, using VC and SQL 2000 development, a very good system, users access the database according to different permissions, add, modify, query, delete, print, backup and restore database operation ..)