本代码可以求得输入的表达式的值，经过编译后，可以输入表达式个数，数值表达式，最后求得值...

自己开发的短信息发送DLL，环境evc4 + 短信猫，通过串口连接，发ＡＴ指令，目前该模块测试通过．可供大家参考，程序中有公司信息，请使用的时候去除，避免麻烦-Developed their own short message DLL, environmental evc4+ Message cats, through the serial port connection, the AT command, the current of the module test. For your reference, proceedings have company information, please use the time to remove and avoid trouble

图形的绘制，如何使用自定义画笔（颜色，线宽，线型）。如何为程序中添加选项菜单和选项设置对话框，如何使用标准颜色对话框，如何使用字体对话框，在选项对话框中实现预览功能。实现选项对话框和窗口类中的数据交换。如何改变对话框和控件的背景色，如何改变控件的文本颜色，对按钮控件的特殊处理。如何在窗口中显示一幅位图。-graphics rendering, since the definition of how to use a paintbrush (color, line width, linear). How procedures for adding options menu and the option to set up the dialog box, use the standard color dialog, how to use the Font dialog box, the dialog box options to achieve preview function. Implementation Options dialog window and type of data exchange. How to change the dialog and control the background color, how to change the text color control, the right button controls special treatment. How in the window shows a bitmap.

一个压力计程序，在对话框中输入数字，上面的尺子就可自动跑到对应的数字上-A pressure gauge procedures, in the dialog box enter the number above ruler can automatically go to the corresponding figures

包括最基本的画线功能，有好几种方法可以使用。-Including the most basic function of drawing a line, there are several methods you can use.

EVC的TREE应用,有需要的朋友可以一起研究哦-EVC TREE applications, the need to be friends together, oh

用于查看dll的函数-for View dll function

在VC环境下开发的，目的是实现无限网络的功能，-Development in the VC environment in order to realize the limitless network functions,

给任意长度的字符串，加CRC校验码的c语言算法-to arbitrary length of the string, plus CRC algorithm in C Language

powerbuilder通用窗口框架，包括插入、删除、打印、刷新、排序等-PowerBuilder window generic framework, including insert, delete, print, refresh, sorting, etc.