NR methaod

输入两个整数，当前一个数不小于后一个数是，输出1和两数之差；当小于时，输出0和第一个数。(Enter two integers, a number not less than a number, output 1 and the difference of two numbers when less than output 0 and the first number.)

利用c语言实现dsp tms2812上的如何控制lcd1602的显示等功能(using c on tms2812 to control lcd 1602 to show chars.)

判断bmp图片的大小。描述如何获得位图的大小，然后再进一步处理。(Bmp picture to judge the size. Describes how to obtain the size of the bitmap, and then further treatment.)

螺旋管气液分离器结构与控制系统设计Spiral gas-liquid separator structure and control system design(Spiral gas-liquid separator structure and control system design)

公司有n个员工，编号1 ~ n。员工数量众多，需要你为他们编写一个管理系统。 　　员工上班时都要登录管理系统登记一个code，离开要从管理系统上注销，员工也可以随时更新自己的code。到了下班时间，所有员工都会自动注销。公司管理人员随时都可能想要知道有多少员工上班，以及任一员工登记的code。(The company has n employees, number 1 ~ n. There are so many employees that you need to write a management system for them. When employees go to work, login to the management system to register a code, leave to log off from the management system, employees can also update their code at any time. By the end of the day, all employees will automatically log out. Company managers may at any time want to know how many employees go to work, and the number of code registered by any employee.)

说明：  matlab代码，实现DCT变换matlab代码，实现DCT变换(matlab code, DCT transform matlab code, DCT transform)

说明：  c#实现的windows系统设备管理，更好的应用c#语言(the implementation of the windows system device management, better application of c-language)

说明：  Lora芯片的驱动，可以实现lora点对点或者组网，也可以用于实现loraone(the driver for lora chips, which can be used for p2p or mesh network)

C语言实现SOCKET套接字编程，通过服务端通信，填充IP与端口，接收连接并返回客户端的scoket，客户端通信等流程最终实现通信，

通过51单片机串行转并行，扩展IO口，实现四个步进电动机的控制。(By 51 microcontroller serial to parallel IO expansion port, to achieve four stepper motor control.)