20111141974639

表达式求值程序，很好的实现表达式的ascii码输入，到数值计算(Expression evaluation procedures, to achieve a very good expression of the ascii code input to the numerical calculation)

说明：  主要是异步通讯编程,C语言,大家可以看一下,以提高自己的水平,一起努力(Mainly asynchronous communication programming, C language, we can take a look, in order to improve their level, work togethe)

vb操作EXCEL，可打开EXCEL文件，添加、删除记录(vb operation EXCEL, can open the EXCEL file, add, delete, records)

在 Visual C++中操作Excel,对开发数据库管理系统很有意义(Operation Excel in Visual c + +, is very meaningful to the development of database management system)

这是vb编写的计算器的源代码，比较容易懂，比较实用(This is the preparation of the calculator vb source code, it was relatively easy to understand, more practical)

一个简单的计算器程序，实现了加、减、乘、除计算(A simple calculator program to achieve the add, subtract, multiply, divide computing)

皮肤按钮 skinbutton transpanel ,,, 欢迎改进()

世界编程大赛作品收集绝对经典，值得一看！(Collected works of the world' s absolute classic programming contest, worth a visit!)

说明：  正则表达式->NFA/DFA/最简表达式(Regular Expression-&gt NFA/DFA/the most simple expression)

knn method is established