图像识别

单片机上电以后LCD屏上显示欢迎回家， 先验证指纹再验证密码 ，同时验证成功开锁 指纹和密码分别可以验证3次 3次都错蜂鸣器响 ，按下manage键进入管理员模式 可以修改密码 删减指纹，指纹用开关量表示(After the microcontroller is powered on, the LCD screen shows welcome home. First verify the fingerprint and then verify the password. At the same time, verify the successful unlocking fingerprint and password can verify that the buzzer rings three times and three times respectively. Press the management key to enter the administrator mode to modify the password and delete the fingerprint. The fingerprint is expressed by the switch.)

实现本机流量监控绘图，测试可用，方便安全(Netflow monitoring)

说明：  给定四个数（1--13），判经过四则运算后能否得到结果24，若能，输出表达式。 (Given the number four (1- 13), after sub after four computing results can be 24, if the output expression.)

MFC 播放gif，GDI+ 播放gif文件，加载非常快。(MFC plays gif, GDI + plays gif files, loading very fast)

通过web服务传递自定义对象,能够提高web服务的运行效率-Service delivery through the web custom objects, web services can improve operational efficiency

这是一个比较全面的傅里叶变换，例子中含有测试的图片，能让人更加明白傅里叶变换的处理效果。(This is a more comprehensive Fourier transform, the example contains a picture of the test, can make people more aware of the Fourier transform of the treatment effect.)

A solver with 1order up-wind style to 2D incompressible viscous Couette

本例程给出了基于keil5编译环境的ADC采样的完整工程，采用的芯片为STM32F030C8T6，可以直接使用。主要功能为利用DMA实现单片机多路顺序采样。

is31fl3730 is31fl3731 芯片驱动公共函数(is31fl3730 is31fl3731 chip common function)

#include <iostream.h> int main() { int i(0),sum(0) while (i<=100) { sum=sum+i ++i }cout<<"sum="<<sum<<endl return 0； }