2410平台硬件文档，具体内容请参考文档的说明，

组播以其独特的优势，在网络通信方面的应用越来越广泛，但随之而来的就是安全问题，其中密钥管理是最基本的问题之一。本文研究了安全组播中的密钥管理问题。介绍了现有的两种主要解决方案，即SKDC方案和密钥树管理方案，并分析了它们的不足之处，指出基于密钥树的研究方向，在此基础上提出基于Huffman密钥分级树的密钥管理方案，将布尔函数的分析方法运用其中使管理简便化。并对该方案的性能从密钥管理的存储空间和密钥刷新通信量两个方面，给出了相应的分析。-Multicast With its unique advantages in the communication network is widely applied, but the attendant security issues, key management is the most basic one of the problems. This paper studies the security Multicast key management issues. Of the two main existing solutions, and key programs SKDC tree management program analysis of their deficiencies, that the tree on the key directions of research on this basis based on the classification tree Huffman key Key Management Program, Boolean function of the analytical method which enable the use of simple. Program and the performance of key management from the storage space and traffic Key set two, given the corresponding analysis.

本书介绍了如何在excel中进行一般的数据统计-the book introduces how to excel for the general statistics

c#windoes平台手册

一个在汇编环境下设计推箱子的小游戏。 设计要求： 通过移动方向键来控制小人去推动箱子，直到把所有的箱子都推动到各个仓库中。在有限的范围中放好各箱子，且每次只能搬运一个箱子。 -A design environment in the compilation of the game Sokoban. Design requirements: by moving the arrow keys to control the small box to push until all the boxes are to promote the various warehouses. In a limited range of the box in place, and each can only carry one box.

ENC28J60 底层SPI驱动C源码（TCPIP协议已验证通过，IP地址是手动配置的） ，经过测试已通过，可以任意选配一种单片机，带SPI接口不带SPI接口都行

Implementatin of ACO algorithm

让你安静，让你思考，让你踏实地学习，我想这就是《GIS 开发者》的意义。GIS 愈加狂热之时，《GIS 开发者》却让你愈加冷静-Allows you to quiet and let you think you at ease to learn, I think this is

java电子书 可下载到支持java程序的手机上！读者可在其中任意添加书签，以便以后继续阅读！-e-books can be downloaded to support java programs on the phone! Readers can add bookmarks, which arbitrarily, in order to continue after reading!

使你完全一手即可通用全部的配置-so you can be completely hand all the generic configuration

介绍经典Perona-Malik模型各向异性扩散滤波去噪的英文论文，对于学习图像的人很有用的。-Introduced the classic model of Perona-Malik anisotropic diffusion denoising filter papers in English, for those who study images very useful.