一个物流公司的物流配送系统，比较简单，数据库为sqlserver,压缩包里的databak就是。...

effrc 是误差函数。 在计算二阶微分方程的时候会用到。-effrc of error function. In calculating the second order differential equations are used.

VB拼图游戏 可以自己加载任意图片 -VB can load arbitrary puzzle picture

面向对象程序设计，课本中部分例题，c++环境下运行-Object-oriented programming, textbooks and some sample questions, c++ Environment running under

关于遗传算法优化BP网络的 ,感觉没什么用-on genetic algorithm optimization BP Network, feeling useless

squid-2.4 for linux7.2

QT4.6实践编写串口调试助手（原创全源码）， 包括使用qextserial，包括可在linux和windows两种环境下识别通讯方式，和硬件接口识别。非常适合初学者学习，建议下载QT_Create最新版本 -QT4.6 practice, the preparation of serial debugging assistant (original full source code), including the use of qextserial, including linux and windows in the two kinds of environments identify means of communication, and hardware interface identification. Very suitable for beginners to learn, it is recommended to download the latest version of QT_Create

s32410 Nor boot 启动代码-s32410 Nor boot bootcode

/* 描述： 1.自定义分数类fraction，使用该类可以完成分数的输入、分数的加、减、乘、除二目运算和一目减运算、分数的约分操作、分数的倒数运算、对两个分数进行六种比较运算、以及对分数的输出等操作。 2.尽量用运算符重载函数。如，可重载+、-、*、/、>、>=、 =,< ,< =,==,!=, in order to achieve a variety of computing scores. And achieve scores and mixed integer operations. 3. As far as possible to consider application performance.

PB中使用凭证格式的控件-PB format documents using the controls

在powerbuilder下实现flash界面, 在powerbuilder下实现flash界面-PowerBuilder realize in the next flash interface flash interface under PowerBuilder