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。...

产生各种各样的频率，欢迎大家来使用，-Produce a wide range of frequency

本程序是用汇编语言来写的一段关于lcd的使用，还有并行通讯口的内容-This procedure is used assembly language to write a paragraph on the lcd use, as well as the contents of parallel communication port

51定时器完整源程序。有详细介绍，解压即用。非常方便，实用-51 timers complete source. For more details, used to extract. Very convenient, practical

先输入一个关键字符串，然后输入一个句子 找出关键字符串在句子中位置 -Input a key string, and then enter the string a sentence to identify key positions in the sentence

用8251实现串行口异步通信，自发自收，波特率1200bps。采用查询方式发送与接收。从键盘输入发送字符。发送与接收的字符均在屏幕上显示。按esc键返回dos-Achieved with the 8251 serial asynchronous communication, spontaneous self-income, the baud rate 1200bps. Way to send and receive using queries. To send characters from the keyboard. Send and receive characters are displayed on the screen. Press esc key to return to dos

学生成绩核算系统的设计与实现（25） 要求：（1）按班级按课程从文件中读入相应的平时成绩、期中考试成绩和期末考试成绩。 （2）三个成绩对总评成绩的百分比被定义为常数，各占总成绩的30 、30 和40 。 （3）计算每位学生的总评成绩。 （4）计算该班级本课程的总平均成绩。 （5）计算处于优、良、中、及格、不及格的学生人数以及占总人数的百分比。其中100-90为优，89-80为良，79-70为中，69-60为及格，60分以下为不及格。 （6）按要求输出成绩在优、良、中、及格、不及格各区间的学生学号、成绩。-The student achievement calculation system s design with realizes (25) Request: (1) reads in the corresponding usual result, the midterm examination result and the terminal examinations result according to the class and grade according to the curriculum from the document. (2) three result are defined to the general appraisal result s percentage as the constant, occupies the overall result respectively 30 , 30 and 40 . (3) calculates each student s general appraisal result. (4) calculates this class and grade this curriculum the population mean result. (5) calculates the student population which is in superiorly, good, passes an examination, does not pass an examination as well as accounts for the total number of peop

Jennic with ADE7756 power meter

AD9851的应用程序，经验证可以正常使用-AD9851 application, normal use can be proven

6502的汇编代码-6502 assembly code

这是西安交通大学陶文铨院士课题组的SIMPLER源代码，可用于计算二维不可压缩流动传热问题，非常好用。