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。...

用光标实现飞鸟的形状 使其在屏幕中间看起来有非动效果 非常好玩哈-birds use the cursor to achieve it in the shape of the screen, they are among the non-dynamic effect was very fun Kazakhstan

c语言编译的计算器 为了方便了解流程,在程序中把计算过程也输出了.而且栈操作的实现部分也是自己实现的. 程序用两个栈,optr寄存运算符,opnd寄存操作数和运算结果.输入的表达式以等号结束,例如:2*(1+2)= -c language compiler of the calculator in order to facilitate the understanding of flow, in the procedure to calculate the output of the process. but Stack is the realization of part of their realization. procedures with two stacks, optr storage operator, opnd operand storage and computing the results of . enter the expression in order to equate the end of, for example: 2* (1+ 2) =

单片机的入门小程序，用它来来扫描键盘，并根据不同的按键方式，显示不同流水灯-Procedures for the entry of small single-chip, to use it to scan the keyboard and buttons according to different methods show different water lights

400k的源代码,大家参考参考,价值不一般的-code in 400k,reference for everybody,a large of value!

电子钟源程序-Electronic clock source

An example to illustrate how to set the internal adjustable CID gain and receive FSK or DTMF data. Assume end-code of DTMF data string is "D".-An example to illustrate how to set the inte CID rnal adjustable gain and receive FSK or DTMF data. Assume end-of DTMF code data string is "D" .

avr 秒节拍程序，采用汇编语言设计编写的通用软件延时子程序-avr seconds beats procedures, the use of assembly language designed to prepare the common software Delay Subroutine

S1实验板 AT89C51 12M晶振 加法实验(52H+FCH=01001110B)在P1口显示 -S1 board AT89C51 12M Adder crystal experiment (52H+ FCH = 01001110B) in the P1 I show

汇编编译器-Compilation of the compiler

8051asm 汇编器source code.-8051asm assembler source code.