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Microsoft Visio 是微软公司生产的一个强大的图形设计软件，专门用于绘制比如数据库设计图、流程示意图、系统结构图的图形设计软件。如同其OFFICE系列软件一样，有着强大而繁多的功能，在程序和工程设计中被广泛的应用。-Microsoft Visio, Microsoft produced a powerful graphic design software, such as devoted to mapping database design, process diagram, the system structure of the graphics design software. Like its OFFICE Series software, which has a strong range of functions, procedures and engineering design was widely used.

LWIP是TCP/IP协议栈的一种实现。LWIP的主要目的是减少存储器利用量和代码尺寸，使LWIP适合应用于小的、资源有限的处理器如嵌入式系统。为了减少处理器和存储器要求，lwIP可以通过不需任何数据拷贝的API进行裁减。 本文叙述了lwIP的设计与实现。叙述了协议实现及子系统中所使用的算法和数据结构如存储和缓冲管理系统。还包括LWIP API的参考手册和使用LWIP 的一些代码例子。-LwIP is TCP/IP protocol stack as a realization. LwIP main purpose is to reduce the memory utilization and code size, so lwIP suitable for small, resource-limited processor such as embedded systems. In order to reduce the processor and memory requirements, lwIP can copy any data without the process of reducing the API. This paper describes the Design and Implementation of lwIP. Describes the protocol and subsystems used in the algorithms and data structures such as storage and buffer management system. LWIP API also includes a reference manual and use lwIP some code examples.

C#完成端口，一个服务器实例源码程序，开源进行进一步修改使用。

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linux c 函数库 所有API说明。可以很方便查找调用。-linux c function library for all API description. You can easily find calls.

128位的图形条形码生成器，只能生成二维图形码，有高手在的话可以做一个三维的让学习一下。现在条码的打印需要用条码打印机来打印，所以这是个中间过程工具，不同行业的应用背景也可以适用。

软件基础的讲演报告(2)，华北电力大学的李中教授的，讲的很不错-software based on the lectures (2), North China Electric Power University Professor Lee, said very good!

《数据库原理与应用》课程的模拟卷，挺典型的，对于学这门课的同学应该是挺有用的-数据库原理与应用课程的模拟卷，挺典型的

2410原理图1.pdf -2410 Schematic 1.pdf

系统分析师考试辅导,影印PDF版,与教程一起,为考试参考用书-Systems analysts test counseling, photocopying PDF version, together with the Guide for the exam reference book