使用74164连接8行2列键盘的行线，74165连接键盘的列线，编写扫描键盘，包括C和汇编程序...

EM78P447奏乐，利用定时计时器控制P70脚，输出一段音乐。-EM78P447 music, using regular timer control pin P70, the output section of music.

接口课程设计，红绿灯2006.3.10DATA SEGMENT LEDTAL DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH,0H-interface curriculum design, traffic lights SEGMENT DATA 2006 .3.10 LEDTAL DB 3FH, 06H, 5BH, 4FH, 66H, 6DH, NAS, 07H, 7FH, 6FH, OH

用直流无刷电机控制电动门的运转,可已省掉机械定位装置-Brushless DC motor control with electric door operation, may have saved mechanical positioning device

用于并行接口实验，运行环境为Winxp Xingyan 集成环境-Parallel Interface for the experiment, operating environment integrated environment for Winxp Xingyan

BCD转HEX的51单片机原代码，已经在AT89C51开发台平上调试通过了-BCD to HEX 51 Singlechip the original code has been developed in Taiwan Ping AT89C51 debugging adopted

P1口LED灯实现各种渐变效果，有真正的流水灯程序！！1-P1 port LED lamps to achieve a variety of gradient effects, there is a real water light program! ! 1

202.asm－－ －演奏“八月桂花香”源程序-202.asm--- Recital 八月桂花香 source

无线通信功能的读写程序，包括汇编原代码，可烧录文件，熟悉无线通信产品的读写方式-Wireless communication function to read and write procedures, including the compilation of the original code, recordable documents, familiar with the wireless communications products to read and write mode

超声波避障源码，可以参考，要原理图请联系我-Ultrasonic obstacle avoidance source code, can refer to the schematic, please contact me

  ------------------- 执行C的拷贝构造函数 执行C的赋值函数 c1.x=1,c1.y=2 c2.x=1,c2.y=200 c3.x=10,c3.y=200 ------------------- 执行D的拷贝构造函数 执行D的赋值函数 e1