电脑摄像头检测

c# 高效数据库连接池源码 有列子 高效数据库连接池源码(Efficient database connection pool)

A simple monopoly written in c#

STM32入门资料PDF格式，详细讲解STM32的入门到精通，分初中高三个步骤。(STM32 introductory information PDF format, a detailed introduction of STM32 to proficiency, divided into three steps of junior high school and senior high school.)

说明：  首先它能显示环境的温度并能设置上下限阀值，这是最基本的功能，系统上电的时候显示的是当前环境温度和设定的温度阀值，我们可以通过按键来修改温度上下限阀值。(First of all, it can display the environment temperature and set the upper and lower limit threshold, which is the most basic function. When the system is powered on, it displays the current environment temperature and the set temperature threshold. We can modify the upper and lower limit threshold by pressing the key.)

为更多SMT行业相关人士带来帮助,个人写的小软件，就是一些处理字符串的小软件。赚点积分容易吗？哎，不过这样也好，免得那些渣渣来捣乱。

说明：  串口输出：LED_KEP test!； 程序运行后8LED会数字滚动，LED跑马，然后按键盘8LED会显示不同的键值； 屏幕上显示相关的文字。(Serial port output: LED_KEP test!; After the program runs, the 8LED will scroll digitally, the LED will run horse, and then the keypad 8LED will display different keys. The relevant text is displayed on the screen.)

MATLAB有限元法应用与实例，参考源程序(MATLAB finite element method and examples, refer to the source)

电力系统绘图程序源码,对开发GIS系统的程序员有一定的帮助(VC++ electrotic DRAWING PROGAM)

c# 控件美化， 重写 track bar (track bar override)

自制usbasp/isp最新固件usbasp.atmega8.2011-05-29(Homemade usbasp/isp latest firmware usbasp.atmega8.2011-05-29)