摘要

DES是一种分组密码。假定明文m是由0和1组成的长度为64位的符号串，密钥k也是64位的0、1符号串。-DES is a block cipher. M is expressly assumed by 0 and a length of 64 strings of symbols, as well as key k 0 64, a string of symbols.

这是一个时钟程序，请大家指点一下，谢谢大家-This is a clock program, everyone gets advice on thank you

24c02应用,在家用电器控制系统中经常有这类的应用.-24C02 applications, in household appliances control systems often have this kind of application.

dos下testmemory程序，可以编译通过并运行。-testmemory procedures under dos, you can compile and run through.

这个程序主要是为了简单方便的改变屏幕的分辨率。-This procedure is simple and convenient in order to change the screen resolution.

王爽的汇编语言的课后答案，而且还有课程设计的答案，很值得下-Wang Shuang language after compilation of the answers, but also the answer to the curriculum design, it is worthy of the next

asp的web在线聊天室源程序,程序实现了聊天室的许多功能,特别是刷新功能,做到了实时刷新(有人说话才刷,保持.zip-asp online chat rooms of the web source, the program achieved many of the features chat rooms, especially the refresh function, so the real-time refresh (some say only brush and maintain. zip

一个与一个低通滤波器结合可以用作简单、廉价的数/模转换器。其输出可用于驱动电压控制器件，或用于需要模/数转换器采样受控参数的反馈控制系统中。PWM常用于电机控制系统中。-A combination of a low-pass filter can be used as a simple, low-cost D/A converter. The output can be used to drive voltage control devices, or for the need for A/D converter sampling the controlled parameters of feedback control systems. PWM motor control commonly used in the system.

在DOS下的一个编辑器-in a DOS editor

很小的ＯＳ只有８００多Ｋ，下载来研究研究吧，-A very small OS only more than 800 K, download it to study the study,