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VC++编写的IP侦查小程序 很实用(VC++ IP detection of small programs written in a very practical)

一元二次方程及出错信息，在程序中输入一元二次方程，获得解析解(A quadratic equation and error information. Enter a quadratic equation in the program, access to analytic solution)

说明：  上位机读写汇川H3U PLC的寄存器与继电器(Register and Relay of H3U PLC for Upper Computer Reading and Writing)

PRODAVE 实例 PRODAVE是西门子的通讯协议，这个文件是开源的PRODAVE实例，能够兼容西门子的PLC(PRODAVE example is the Siemens PRODAVE communication protocol, this document is open-source PRODAVE example, can compatible with Siemens PLC)

Is a VB source code to display the key press on infrared remote control , received on RMT32 (www.infrarossi.it)

对一段只含有几种字符的字符串进行转换，转换成相应的数字(a string contains only several character conversion, and converted into the corresponding digital )

高通滤波算法，可以很好的解决需要高通滤波的算法中(High Pass Filtering Algorithms)

使用MFC和Sql Server2000编写的仓库管理系统，具有多功能，查询物资、增加物资、删除物资，具有可视化的界面、并且界面友好。(Sql Server2000 using MFC and the preparation of a warehouse management system, with multi-functional, check materials, to increase supplies, delete material, with a visual interface and user-friendly.)

编写一个函数，要求输入年月日时分秒， 输出该年月日时分秒的下一秒。 如输入2011年12月31日23时59分59秒， 则输出2012年1月1日0时0分0秒。 需要考虑闰年 和 2月的特殊情况 (Write a function that requires input date, hour, minute and second outputs of the date when the next second. If the input at 23:59:59 on December 31st, 2011, output at 0:00:00 on January 1, 2012. Leap year and February need to consider the special case)

VB与EXCEL的交互连接，VB对EXCEL的写入，VB读出EXCEL的数值(VB and EXCEL interconnect)