sysmain

连接access数据库实例，简单的操作access数据库(Connecting access database instance)

说明：  VFP开发的主控程序，其中用了多种方法和技巧实现对用户权限的控制和选择。(VFP development of the control procedures, which use a variety of methods and techniques to achieve competence of the user control and choice.)

说明：  PowerBuilder的一些实例，适合初学者学习使用(Learning source code)

dbf filter sample I found and very useful for dbf database programing

Handling null fields in SQL queries

说明：  基于powerbuilder的报时源代码，适合初学者学习使用(Learning source code)

Replacement for Sybases isql with readline support including history and commandline completion. Requires sybase c-client libs or FreeTDS. Tested with Sybase 12.0, 12.5 on Solaris, Linux, FreeBSD, and MacOS X.

1. 采用BP神经网络设计男女生分类器。采用的特征包括身高、体重、是否喜欢数学、是否喜欢文学、是否喜欢运动共五个特征，BP神经网络包含一个隐层，隐层结点数为5。要求：自行编写代码完成后向传播算法，采用交叉验证的方式实现对于性能指标的评判（包含SE,SP,ACC和AUC，AUC的计算可以基于平台的软件包）。(. using BP neural network to design the classifier for male and female students. The features include height, weight, whether they like mathematics, whether they like literature, and whether they like sports. The BP neural network contains a hidden layer, and the number of hidden nodes is five (5). Requirements: self compiled code, post propagation algorithm, cross validation method to achieve performance evaluation (including SE, SP, ACC and AUC, AUC calculation can be based on platform software package).)

说明：  小巧的天气预报实时显示系统，采用GDI+技术开发，实现了基本且简单的功能，能在图片上实时显示温度/气温等天气预报情况，并能进行数据的维护更新。小巧的天气预报实时显示系统，采用GDI+技术开发，实现了基本且简单的功能，能在图片上实时显示温度/气温等天气预报情况，并能进行数据的维护更新。(compact real-time weather display system using GDI technology development, achieve the basic and simple functions, in real-time pictures show that the temperature/weather conditions such as temperature, and for the maintenance and update of data. The compact, real-time weather system, using GDI technology development, achieve the basic and simple functions, in real-time pictures show that the temperature/weather conditions such as temperature, and for the maintenance and update of data.)

说明：  sqlite的最新源码 This ZIP archive contains preprocessed C code for the SQLite library as individual source files. It is strongly recommended that the amalgamation above be used instead of this package(sqlite latest source This ZIP archive contains preprocessed C code for the SQLite library as individual source files. It is strongly recommended that the amalgamation above be used instead of this package)