多功能按键判断程序，可以自如的判断何健按下

1、用8255的A口驱动六个七段数码管（LED）的字段，C口驱动六位七段数码管（LED）的位控端，右侧两位显示分值，左侧两位显示秒值。 2、段数码管采用动态扫描方式，用8253做定时器（采用查询方式），每位显示的时间50Hz。 3、以5ms为基本时间单位，计数产生秒时间值，秒计数到60时对分计数，分计数到69时对时计数。 -BUFF_KEY EQU 21H BUFF_LED1 EQU 22H BUFF_LED2 EQU 23H BUFF_LED3 EQU 24H BUFF_LED4 EQU 25H BUFF_LED5 EQU 26H BUFF_LED6

题目：利用条件运算符的嵌套来完成此题：学习成绩>=90分的同学用A表示，60-89分之间的用B表示，60分以下的用C表示。 1.程序分析：(a>b)?a:b这是条件运算符的基本例子。-Title: the use of nested conditional operator to complete this question: academic> = 90 points with A classmate said that 60-89 between the use of B said that the 60 points or less with C said. 1. Program analysis: (a> b)? A: b This is a conditional operator s basic example.

DS18B20的源程序,很好用的-DS18B20 source, the good

这个代码是用C语言编写的，具有记事本的常用功能，代码完整，功能完善-This code is written using C language, with the commonly used Notepad features, code integrity, and function

HD44780在aduc812上的应用，汇编程序，调试成功-HD44780 in the application procedure compilation, debugging success

针对OCM4X8C的汉字显示的汇编程序,是用keil软件编写的．-For the Chinese characters displayed OCM4X8C assembler is prepared using keil software.

汇编写的俄罗斯方块，在386体系结构下编译运行，蛮好玩的-compilation of the Russian ideographic writing, in 386 Architecture compiler running under, quite fun

汇编教程``挺好`-`` very good compilation Guide `

1602LCD滚动显示程序-1602LCD rolling display program

16个按键的 程序， 具体按照扫描的，时间快-16 key procedures, specifically in accordance with the scan, time speed