自己编写的关于火车列尾风压控制的程序,涉及串口,数据库等相关内容...

串口通信控件，主要用户串口的数据输入输出，modem通信等-Serial communication control, the primary user of the serial data input and output, modem communications

vb串口程序，写的是一个串口使用例程，对初学者有用，特别是工控类的-vb serial procedures, to write a serial port using the routines, useful for beginners, especially the industrial category

这是非常有挑战性的题目。对于用户输入的任意一个平面函数f(x)，绘制出其函数曲线。这里最关键的技术难点就是如何实现计算表达式的值。在《编译原理》和《数据结构》的书中，都有对表达式运算方法的论述。说实在的，在编译型计算机语言中实现对用户输入表达式的运算是非常困难的。需要对表达式进行扫描，去括号，按照运算符的优先级生成2叉树，然后遍历该树生成逆波兰表达式，再然后通过栈的方法进行运算。如果在表达式中再包含有函数的话......描述起来都麻烦，更不要说用程序实现了:-(-This is a very challenging issue. For user input an arbitrary planar function f (x), mapping out its function curves. Here the most critical technical problems is how to achieve calculated the value of the expression. "Compiling Principle" and "data structure," the book, have right of expression Operational discussed. Indeed, the computer language compiler to achieve expression of the user input operation is very difficult. Need to scan expression to the brackets, in accordance with the priority Operators Generation 2-ary tree, and then traverse the tree generated reverse Polish expression, and then through the stack approach to computing. If the expression again contains the function described ...... these are trouble, not to mention t

vc,串口通讯类和用这个类编写的一个例子程序-vc, serial communications and the use of this type of an example of the preparation process

Advantech设计的外板预警系统。通过这个可以测出部分板卡的错误信息-Advantech designed plate early warning system. Through this part can detect the wrong message board

该程序实现了串口之间的相互通信，是异步串口通信，可以设置串口号-Implementation of the procedures between the serial communications, serial communication is asynchronous, the classic experimental procedures for computer networks

获取当前机器的COM口的数量，包括usb转换的串口-access to the current machinery of the number of COM ports, including USB Serial Conversion

一个单片机读写fm24c256的c51源程序-a microcontroller to read and write fm24c256 the source decoder

LP830 无线识别卡 读写程序demo， 详细实现了hsm协议-LP830 wireless identification card reader procedures demo, achieving a detailed agreement HSM

Corrado Cavalli为VB.NET写的串口通讯类。通过调用API的方法与串口通讯。我的有关串口通讯的程序都是用的这个类。-Corrado Cavalli to write VB.NET serial communications. By calling the API methods and serial communications. Serial I of the communications procedures are used in this category.