Learning Perl第五版（英文版），完整的Perl语言学习用书！

一本很好的教材.C#开发者必备.内容全面,很难得哦.-a good teaching material. C# developers required. Comprehensive, a rare oh.

7G的物理考研资料，你想要吗？我这里是个BT种子，你去慢慢下吧。我是下了半个月。-7G physical study section of the information, you want it? I have here is a BT seeds, slowly you go under the bar. I was under a half a month.

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.

一个不错JSP入门教程.-a good guide JSP entry.

EL手册也许用的上吧-EL manual may be used on it

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还有一些在这个代码基础上升级的几个APK，感兴趣的可以看看，或许你们也可以做出更好的效果。 里面加了广告的一些代码，大家可以看，也可以忽略。

PERL5中文教程-PERL5 Chinese Guide

java2的电子图书-java2 electronic books