域名系统安全（PKI）等权威标志

这是XMODEM传输协议原代码,测试只能证明错误的存在，而不能表明程序中没有错误。 测试的两个作用是：确定程序中缺陷的存在；有助于判断该程序在实际上是否可用。 软件测试最困难的问题之一是知道何时停止测试(When to stop testing? ) 自己测试自己的程序是不可能的。 当一个软件被测出的缺陷数目增加时，更多的未被发现的缺陷存在的概率也随之增加。 -This XMODEM transfer protocol source code, the test can only be proved wrong there and not show anything wrong procedure. The two test role is : procedures for determining the existence of defects; Contribute to the judge whether the procedure can be used in practice. Software testing the most difficult one of the problems is to know when to stop testing (When to stop testing) testing their own procedures is not possible. When a software detected the increase in the number of defects, more undiscovered flaws in the probability has increased.

NFS版本4协议

主要是本科学生可以欣赏和理解我上传的MATLAB/simulink

是不是觉得OICQ的截面很酷，你想知道是怎么实现的吗？看一遍，说不定你也能做出来！-not think OICQ section cool, you want to know is how to achieve? Howard, perhaps you can come out!

gprs tutorials and summary

通讯录管理程序源代码-directory management program source code

另类的UDP聊天,分有客户端与服务器端,VB编程,很好用,-alternative UDP Chat, for a client and server, Visual Basic programming, useful,

Making plain binary files using a C compiler,使用gcc得到纯二进制代码。讲的很不错，对学习c语言，了解编译器很有用。-Making plain binary files using a C compiler, gcc used to be pure binary code. Said very good, to learn c language, understand the compiler useful.

这是一个有关matlab的编程，是关于fm，dsb调制与解调的程序。-This is a question matlab programming is on the fm, dsb modulation and demodulation process.

清华大学 博士生前沿课 通信和信息系统中的电磁波技术-Tsinghua University doctoral student class cutting-edge communications and information systems technology in electromagnetic