数据库是vb中比较难的一部分，希望大家能够有所研究，给我发意见到我的信箱pnrj.com@163.com

程序员必备书程序员开发宝典-programmers must book on the development of programmers

widows编程例题程序7-12章-widows programming examples procedures Chapter 7-12

linux学习的教程.我感觉不错,哎.希望大家多多联系.加油学习-linux tutorial learning. I feel good, hey. I hope everyone a lot of contact. refueling learning

优质量C++／C编程规范，希望对大家有帮助-High quality C++/C program criterion, I hope that will help you.

电脑应用文萃-computer applications Wencui

关于java 2d 的一本书 我看了 感觉还可以，大家也看看把-on the 2d of a book I read can also feel, we have to see if the he

变分法基础pdf 基本理论知识，希望对大家打下理论基础，-this is basic theory for math.

Borland C++ Builder Windows API 实例-Borland C Builder Windows API examples

aerodynamic JSBSim is good

在多数情况下,集成电路芯片的管脚不会全部被使用。例如74ABT16244系列器件最多可以使用16路I/O管脚,但实际上通常不会全部使用,这样就会存在悬空端子。所有数字逻辑器件的无用端子必须连接到一个高电平或低电平,以防止电流漂移（具有总线保持功能的器件无需处理不用输入管脚）。究竟上拉还是下拉由实际器件在何种方式下功耗最低确定。-in most cases, the IC chips will not pin all been used. For example, 74 ABT16244 series device can use up to 16 Road I/O pins. but usually not all use, so there will always be vacant terminal. All digital logic device useless terminals to be connected to a serial or low-level. to prevent the current drift (with the bus maintain functional devices need not deal with the importation of pins). What to draw from the drop-down or what the actual device under way to determine the minimum power consumption.