可编程并行接口实验源程序，通过此实验可掌握8255方式0的工作原理及使用方法。编程从8255C口输入数据，再从A口输出...

汇编语言实现两台微机之间通过RS-232C电缆连接实现串行通信。 1、异步方式全双工通信，每次传送单个字符，能连续发送和接收。 2、通信双方采用程序查询方式。 -Microcomputer assembly language to achieve between the two RS-232C serial communication cable connection. 1, full-duplex asynchronous communications, each transmission of a single character can send and receive continuous. 2, communications procedures for both the use of inquiry methods.

filePath="c:/test/tt.txt" #从文件中读取信息 f=open(filePath, "r")#运用读的方式打开文件， for line in f: #每次读取文件的一行内容      print(line) f.close() #向文件中写入信息 f=open(filePath, "a") #这里有两种方式：第一种是以w的形式，它写入时将会清空以前的数据然后再写入数据，第二种是以a的形式，它以追加的形式写入数据 f.write("我开始向文件中写入信息 ") f.writelines("我已经向文件写入了信息") f.close()

统计字符串中字母和数字的个数，对自学汇编的人会有帮助的，其中有如何输入字符串，如何输出两位数．-statistics strings of letters and digits of the number, the compilation of self-help, which is how the input string, how to double-digit output.

某种的mcs51格式转换到另一种格式 -Some of mcs51 format conversion to another format

51交通灯设计用74LS273作为输出口，带汇编程序，电路图。-51 traffic lights designed for use 74LS273 as the output port with assembler, circuit diagrams.

电动自行车里程系统。 安装于电动自行车上，可以自动记录里程数。-Electric bicycle mileage system. Installed in the electric bicycle, you can automatically record mileage.

This zip files contains twelve practices in assembler and C with the project files to work with the MPLAB IDE environment.

简易的汇编电子琴程序，在通用的PC下运行，没有什么外观可言，通过键盘字母实现按键发声-Simple compilation of flower procedures, the common PC running under no appearance at all, through the keyboard keys letters realize voice

一个显示嚣控制程序，可以立即使显示器处于省电模工，用TASM32汇编的win32程序-a show clamor control procedures, can immediately display at a power-saving mode for use although the compilation process win32