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三角高程近似平差计算（包括高差计算）程序，外业资料需要整理成练习文档（测站信息）.txt和练习文档（测站点观测信息）.txt的形式(Triangle elevation approximate adjustment calculation (including height difference calculation) program, field data need to be organized into practice document (station information) .txt documents and exercises (the station observation information) .txt form)

Account plus activation part 1

说明：  开放web平台，供客户查询ERP库存(Open web platform for customers to query ERP inventory)

socket 点对点编程的c++和c#完美版，服务端客户端皆有。(point-to-point socket programming c++ and c# a perfect version of both client-side service.)

主要功能：某网站投票程序(含验证码识别、自动换ip、adsl自动拨号、自动清除cookie、

各种典型滤波器的设计与仿真,包括矩形窗、巴特莱特窗、汉宁窗、汉明窗和布莱克曼窗。(Typical filter design and simulated, including the rectangular window, Bartlett window, Hanning window, Hamming window and Blackman window.)

说明：  可以在多屏幕上显示TDX证券软件，并且能保存配置信息(TDX Securities Software can be displayed on multiple screens)

不使用任何库函数，用递归实现字符串的逆序输出，C++实现(Do not use any library functions, using recursive reverse output string, C++ achieve)

vc ADO控制Access数据库的程序源码，很不错的demo(vc ADO Access database program source code control, very good demo)

.net framework2.0环境下制作图表控件，dotnetcharting(. Net framework2.0 environment charting control, dotnetcharting)