是PCB的入门学习资料，希望对学习PCB的，有帮助，

In this talk we will consider two approaches in dealing with the risk of supplier bankruptcy. In the first model, we study the effects of supply disruption risk in a supply chain where one buyer deals with competing risky suppliers who may default during their production lead-times.

MATLAB初学者 介绍了MATLAB 的一些基本使用方法-MATLAB for beginners introduces some basic use MATLAB

AJAXMAP,AJAX做的MAP,很好用,DLL控件,-AJAXMAP, AJAX to do the MAP, a very good use, DLL controls,

ieee802.11关于ad hoc网路协议的介绍，希望对各位学习有所帮助。-IEEE802.11 on the ad hoc network protocols, the wish to help you learn.

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为青岛一家公司做的条码打印管理，用的是斑马的打印机。没有用条码打印控件，直接用条码打印机的控制。有兴趣者可以参考一下。没用任何第三方控件，数据库用的是ado，这是刚开始一个朋友做的。谢谢！

用易语言做的CE源码带提升权限模块用易语言做的CE源码带提升权限模块-With easy language to enhance the authority of the CE source code with a module for easy language to enhance the authority of the CE source code with a module

实用的485通讯电路，测试通过，抗干扰性能优良-Practical 485 communications circuits, test passed, excellent anti-interference performance

RPG游戏场景编辑器源代码,可以用于编辑RPG游戏的场景,供大家学习如何制作RPG游戏的场景工具-RPG game Scene editor source code, can be used for editing RPG game scenes for everyone to learn how to produce RPG game scene tools

一个文件管理系统的示例程序。用C++开发。-A document management system of the sample programs. With C++ Development.