长沙学院《单片机原理及应用》课程设计说明书题目基于单片机的多路抢答器设计系(部) 电子与通信工程系专业(班级)姓名学号指导教师起止日期《单片机原理及应用》课程设计任务书长沙学院课程设计鉴定表目录目录目录 (4)1设计内容与要求 (5)2 设计方案 (6)3.电路仿真图 (7)4.程序框图 (9)5.心得体会 (10)6.参考文献： (10)概要数字抢答器由主体电路与扩展电路组成。
优先编码电路、锁存器、译码电路将参赛队的输入信号在显示器上输出用控制电路和主持人开关启动报警电路，以上两部分组成主体电路.通过定时电路和译码电路将秒脉冲产生的信号在显示器上输出实现计时功能，构成扩展电路。
经过布线、焊接、调试等工作后数字抢答器成形。
单片机体积小价格低，应用方便，稳定可靠。
单片机将很多任务交给了软件编程去实现，大大简化了外围硬件电路，使外围电路的实现简单方便。
单片机系统的硬件结构给予了抢答系统“身躯”,而单片机的应用程序赋予了其新的“生命”，使其在传统的抢答器面前具有电路简单、成本低、运行可靠等特色。
对于抢答器我们大家都知道那是用于选手做抢答题时用的，选手进行抢答，抢到题的选手来回答问题。
抢答器不考验选手的反应速度同时也要求选手具备足够的知识面和一定的勇气选手们都站在同一个起跑线上，体现了公平公正的原则。
关键字：抢答电路定时电路报警电路1设计内容与要求设计内容设计一个抢答器，可供位选手抢答，主持人可通过开关复位控制，具有抢答、设计要求设计一个抢答器，可以同时供8名选手或8个队伍参加比赛，他们的编号分别是1、2、3、4、5、6、7、8，各用一个抢答按钮，按钮的编号与选手的编号相对应，也是给节目主持人设置一个控制开关9，用来控制系统的清零（编号显示数码管灭灯）和抢答的开始。
抢答器具有数据锁存和显示功能。
抢答开始，若有选手按动抢答按钮，编号立即锁存，并在LED数码管上显示出选手的编号，同时扬声器给出音响提示。
此外要封存输入电路，禁止其他选手抢答。
优先抢答选手的编号一直保持到系统清零为止。
抢答器具有定时抢答的功能，且一次抢答的时间可以由主持人设定，档节目主持人按下“9”按钮后，同时扬声器发出短暂声，抢答有效，定时器停止工作，显示器上显示选手的编号，并保持到主持人将系统清零为止。
2 设计方案抢答按钮连接控制电路，抢答开始，有选手按下抢答按钮后，控制电路是锁存器锁存各个抢答路的电平高低，从而锁存了第一位抢答者的抢答信号，同时切断其他抢答者的抢答信号，阻止其他选手的抢答。
编码器将抢答结果译成二进制数送给下一级译码显示电路，译码显示电路显示抢答成功者的号码。
声响电路可以发出提醒声响。
3.电路仿真图总电路图辅助电路部分：共阳极的数码显示电路部分：1~9号按键电路部分（包括主持人的开关复位按键9）蜂鸣电路（唱歌的）4.程序框图5.心得体会我在这一次抢答器的设计过程中，很是受益匪浅。
通过对自己在大学三年时间里所学的知识的回顾，并充分发挥对所学知识的理解和对毕业设计的思考及书面表达能力，最终完成了。
这为自己今后进一步深化学习，积累了一定宝贵的经验。
实习的过程也是专业知识的学习过程，它使我运用已有的专业基础知识，对其进行设计，分析和解决一个理论问题或实际问题，把知识转化为能力的实际训练。
培养了我运用所学知识解决实际问题的能力。
通过这次课程设计我发现，只有理论水平提高了；才能够将课本知识与实践相整合，理论知识服务于教学实践，以增强自己的动手能力。
这个实验十分有意义我获得很深刻的经验。
通过这次课程设计，我们知道了理论和实际的距离，也知道了理论和实际想结合的重要性，，也从中得知了很多书本上无法得知的知识。
我们的学习不但要立足于书本，以解决理论和实际教学中的实际问题为目的，还要以实践相结合，理论问题即实践课题，解决问题即课程研究，学生自己就是一个专家通过自己的手来解决问题比用脑子解决问题更加深刻。
学习就应该采取理论与实践结合的方式，理论的问题，也就是实践性的课题。
这种做法既有助于完成理论知识的巩固又有助于带动实践解决实际问题加强我们的动手能力和解决问题的能力6.参考文献：1. 单片机课程设计实例指导，李光飞，北京航天航空大学出版社，20042. 单片机原理及接口技术（第3版），李朝青，北京航空航天大学出版社，20023. 单片机C程序设计及应用实例，胡伟，人民邮电出版社，20034. 单片机系统设计与实例指导，冯育长，西安电子科技大学出版社，20075．电子电路及电子器件, 郭培源,高等教育出版社.,2003附录：#include<reg52.h> //包含头文件，一般情况不需要改动，头文件包含特殊功能寄存器的定义#define uint unsigned int#define uchar unsigned charuchar Flag;uint a;uchar code sound[]={0xff,0x39,0x30,0x26,0x30,0x2b,0x30,0x26,0x30,0x2b,0x30,0x2b,0x30,0x26,0x30,0x26,0x30,0x30,0x30,0x2b,0x30,0x26,0x30,0x39,0x30,0x30,0x30,0x39,0x30, 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0xff,0x26,0x40,0x2b,0x40,0x33,0x40,0x30,0x40,0x26,0x40,0x2b,0x40,0x30,0x40,0x33,0x40,0x39,0x40,0x39,0x40,0x24,0x40,0x26,0x40,0xff,0x40,0x26, 0x40,0x2b,0x40,0x19,0x40,0x18,0x40,0x26,0x40,0x2b,0x40,0x18,0x40,0x19,0x40,0x1c,0x40,0x1c,0x40,0x1c,0x40,0x1c,0x40,0xff,0x40,0x1c,0x40,0x1c,0x40,0x2b,0x40,0x24,0x40,0x26,0x40,0x1c,0x40,0x24,0x40,0x26,0x40,0x26,0x40,0x2b,0x40,0x26,0x40,0xff,0x40,0x26,0x40,0x2b,0x40,0x19,0x40,0x18,0x40,0x26,0x40,0x2b,0x40,0x30,0x40,0x33,0x40,0x39,0x40,0x39,0x40,0x24,0x40,0x26,0x40,0x13,0x40,0x15,0x40,0x19,0x40,0x18,0x40,0x13,0x40,0x15,0x40,0x18,0x40,0x19,0x40,0x1c,0x40,0x1c,0x40,0x1c,0x40,0xff,0x40,0x1c,0x40,0x18,0x40,0x18,0x40,0x18,0x40,0x18,0x40,0x19,0x40,0x1c,0x40,0x18,0x40,0x19,0x40,0x1c,0x40,0x19,0x40,0xff,0x40,0x33,0x40,0x30,0x40,0x2b,0x40,0x24,0x40,0x26,0x40,0x2b,0x40,0x30,0x40,0x33,0x40,0x1c,0x40,0x1c,0x40, 0x1c,0x40,0xff,0x40,0x00,//0xff,0x26,0x20,0x2b,0x20,0x26,0x20,0x2b,0x20,0x26,0x20,0x33,0x20,0x2b,0x20,0x30,0x20,0x39,0x20,0xff,0x20,0x30,0x20,0x26,0x20,0x39,0x20,0x33,0x20,0xff,0x20,0x4c,0x20,0x39,0x20,0x33,0x20,0x30,0x20,0xff,0x20,0x4c,0x20,0x4c,0x20,0x2b,0x20,0x4c,0x20,0x2b,0x20,0x4c,0x20,0x33,0x20,0x55,0x20,0x60,0x20,0x39,0x20,0xff,0x20,0x60,0x20,0x4c,0x20,0x39,0x20,0x33,0x20,0xff,0x20,0x4c,0x20,0x60,0x20,0x33,0x20,0x39,0x20,0x39,0x20,0xff,0x20,0x33,0x20,0x30,0x20,0x2b,0x20,0x4c,0x20,0x30,0x20,0x24,0x20,0x4c,0x20,0x2b,0x20,0x48,0x20,0x4c,0x20,0x55,0x20,0x60,0x20,0x4c,0x20,0x55,0x20,0x60,0x20,0x33,0x20,0xff,0x20,0x55,0x20,0x4c,0x20,0x55,0x20,0x4c,0x20,0x55,0x20,0x4c,0x20,0x33,0x20,0x2b,0x20,0x30,0x20,0x39,0x20,0xff,0x20,0x60,0x20,0x4c,0x20,0x39,0x20,0x33,0x20,0xff,0x20,0x4c,0x20,0x40,0x20,0x33,0x20,0x30,0x20,0xff,0x20,0x4c,0x20,0x4c,0x20,0x2b,0x20,0x4c,0x20,0x55,0x20,0x4c,0x20,0x33,0x20,0x2b,0x20,0x60,0x20,0x39,0x20,0xff,0x20,0x60,0x20,0x4c,0x20,0x39,0x20,0x33,0x20,0xff,0x20,0x4c,0x20,0x60,0x20,0x33,0x20,0x39,0x20,0xff,0x20,0x33,0x20,0x30,0x20,0x2b,0x20,0x26,0x20,0x40,0x20,0x48,0x20,0x4c,0x20,0x2b,0x20,0x48,0x20,0x4c,0x20,0x2b,0x20,0x30,0x20,0x4c,0x20,0x55,0x20,0x30,0x20,0x33,0x20,0xff,0x20,0x55,0x20,0x4c,0x20,0x55,0x20,0x4c,0x20,0x55,0x20,0x4c,0x20,0x33,0x20,0x55,0x20,0x30,0x20,0x39,0x20,0xff,0x20,0x60,0x20,0x26,0x20,0x39,0x20,0x33,0x20,0xff,0x20,0x4c,0x20,0x40,0x20,0x33,0x20,0x30,0x20,0xff,0x20,0x4c,0x20,0x4c,0x20,0x55,0x20,0x4c,0x20,0x55,0x20,0x4c,0x20,0x33,0x20,0x55,0x20,0x60,0x20,0x39,0x20,0xff,0x20,0x60,0x20,0x4c,0x20,0x39,0x20,0x33,0x20,0xff,0x20,0x4c,0x20,0x60,0x20,0x33,0x20,0x39,0x20,0x00,// 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0x20,0x40,0x26,0x40,0x26,0x40,0x20,0x40,0x20,0x40,0x20,0x40,0x20,0x40, 0x20,0x40,0x2b,0x40,0x26,0x40,0x26,0x40,0x2b,0x40,0x26,0x40,0x26,0x40, 0x2b,0x40,0x26,0x40,0x20,0x40,0x1c,0x40,0x1c,0x40,0x1c,0x40,0x1c,0x40, 0x2b,0x40,0x30,0x40,0x1c,0x40,0x2b,0x40,0x30,0x40,0x1c,0x40,0x2b,0x40, 0x26,0x40,0x30,0x40,0x2b,0x40,0x26,0x40,0x20,0x40,0x1c,0x40,0x20,0x40,0x26,0x40,0x2b,0x40,0x30,0x40,0x1c,0x40,0x1c,0x40,0x20,0x40,0x1c,0x40, 0x1c,0x40,0x1c,0x40,0x1c,0x40,0x00, //0xff,0x20,0x40,0x26,0x20,0x20,0x20,0x30,0x40,0x30,0x40,0x39,0x40,0x30,0x40, 0x20,0x40,0x20,0x40,0x20,0x40,0x30,0x20,0x2b,0x20,0x26,0x40,0x2b,0x20, 0x30,0x20,0x2b,0x40,0x2b,0x40,0x2b,0x40,0xff,0x40,0x20,0x40,0x26,0x20, 0x20,0x20,0x30,0x40,0x19,0x40,0x1c,0x40,0x30,0x40,0x20,0x40,0x20,0x40, 0x20,0x40,0x2b,0x20,0x26,0x20,0x24,0x40,0x19,0x40,0x30,0x40,0x30,0x40, 0x30,0x40,0x30,0x40,0x1c,0x40,0x30,0x40,0x30,0x40,0x30,0x40,0x19,0x40, 0x1c,0x20,0x19,0x20,0x30,0x40,0x1c,0x20,0x19,0x20,0x30,0x20,0x1c,0x20, 0x1c,0x20,0x20,0x20,0x26,0x20,0x30,0x20,0x2b,0x40,0x2b,0x40,0x2b,0x40, 0x20,0x40,0x26,0x20,0x30,0x20,0x30,0x40,0x19,0x40,0x1c,0x40,0x30,0x40, 0x20,0x40,0x20,0x40,0x20,0x40,0x2b,0x20,0x26,0x20,0x24,0x40,0x19,0x40, 0x30,0x40,0x30,0x40,0x30,0x40,0x20,0x40,0x26,0x20,0x20,0x20,0x30,0x40,0x30,0x40,0x1c,0x40,0x30,0x40,0x20,0x40,0x20,0x40,0x20,0x40,0x30,0x20,0x2b,0x20,0x26,0x40,0x2b,0x20,0x30,0x20,0x2b,0x40,0x2b,0x40,0x2b,0x40,0x20,0x40,0x26,0x20,0x20,0x20,0x30,0x40,0x19,0x40,0x1c,0x40,0x30,0x40,0x20,0x40,0x20,0x40,0x20,0x40,0x2b,0x20,0x26,0x20,0x24,0x40,0x19,0x40,0x30,0x40,0x30,0x40,0x30,0x40,0x00,//0xff,0x26,0x20,0x2b,0x20,0x26,0x40,0x26,0x40,0xff,0x20,0x2b,0x20,0x26,0x20,0x2b,0x20,0x30,0x40,0x30,0x40,0xff,0x40,0x39,0x20,0x30,0x20,0x2b,0x40,0x2b,0x20,0x26,0x20,0x2b,0x20,0x30,0x20,0x39,0x20,0x39,0x20,0x20,0x40,0x20,0x40,0x26,0x20,0x2b,0x20,0x26,0x40,0x26,0x40,0xff,0x20,0x2b,0x20,0x26,0x20,0x2b,0x20,0x30,0x40,0x30,0x40,0xff,0x40,0x39,0x20,0x30,0x20,0x2b,0x40,0x2b,0x20,0x26,0x20,0x2b,0x20,0x30,0x20,0x39,0x20,0x20,0x20,0x20,0x40,0x20,0x40,0xff,0x40,0x26,0x20,0x20,0x20,0x20,0x40,0x20,0x40,0xff,0x20,0x20,0x20,0x39,0x20,0x20,0x20,0x26,0x40,0x26,0x40,0xff,0x40,0x2b,0x20,0x26,0x20,0x2b,0x40,0x2b,0x20,0x26,0x20,0x2b,0x20,0x30,0x20,0x39,0x20,0x39,0x20,0x39,0x20,0x30,0x20,0x30,0x20,0x30,0x20,0xff,0x40,0x20,0x20,0x20,0x20,0x39,0x20,0x30,0x20,0x33,0x20,0x39,0x20,0x20,0x20,0x26,0x20,0x2b,0x20,0x2b,0x20,0x26,0x20,0xff,0x20,0x26,0x20,0x26,0x20, 0x20,0x20,0x1c,0x40,0x1c,0x40,0xff,0x20,0x39,0x20,0x26,0x20,0x2b,0x20, 0x2b,0x40,0x2b,0x40,0xff,0x40,0x26,0x20,0x20,0x20,0x20,0x20,0x26,0x20, 0xff,0x20,0x30,0x20,0x30,0x20,0x33,0x20,0x39,0x20,0x33,0x20,0x26,0x40,0xff,0x20,0x39,0x20,0x39,0x20,0x33,0x20,0x39,0x20,0x20,0x20,0x26,0x20,0x2b,0x20,0xff,0x20,0x26,0x20,0x2b,0x20,0x26,0x20,0x20,0x40,0x20,0x40,0xff,0x20,0x20,0x20,0x20,0x20,0x39,0x20,0x39,0x20,0x20,0x20,0x26,0x20,0x2b,0x20,0xff,0x20,0x20,0x20,0x20,0x20,0x39,0x20,0x30,0x40,0x30,0x40,0x30,0x40,0xff,0x40,0x00, //0xff,0x26,0x30,0x26,0x30,0x2b,0x30,0x26,0x30,0x26,0x30,0x26,0x20,0x30,0x20, 0x2b,0x30,0x2b,0x30,0x30,0x30,0x2b,0x30,0x2b,0x30,0x26,0x20,0x2b,0x20,0x30,0x20,0x39,0x20,0x30,0x20,0x39,0x20,0x30,0x20,0x39,0x20,0x30,0x30,0x30,0x30,0x26,0x30,0x20,0x30,0x20,0x30,0x20,0x30,0xff,0x30,0x39,0x30,0x39,0x30,0x20,0x30,0x39,0x30,0x39,0x30,0x39,0x20,0x39,0x20,0x20,0x30,0x20,0x30,0x20,0x30,0x30,0x30,0x30,0x30,0x30,0x20,0x30,0x20,0x2b,0x30,0x2b,0x20,0x30,0x20,0x2b,0x20,0x30,0x20,0x2b,0x30,0x2b,0x30,0x2b,0x20,0x26,0x20,0x2b,0x30,0x2b,0x30,0x2b,0x30,0xff,0x30,0x26,0x30,0x26,0x30,0x2b,0x30,0x26,0x30,0x26,0x30,0xff,0x20,0x30,0x20,0x2b,0x30,0x2b,0x30,0x30,0x30,0x2b,0x30,0x2b,0x30,0x26,0x20,0x2b,0x20,0x30,0x20,0x39,0x20,0x30,0x20,0x39,0x20,0x30,0x20,0x39,0x20,0x30,0x30,0x30,0x30,0x26,0x30,0x20,0x30,0x20,0x30,0x20,0x30,0xff,0x30,0x20,0x20,0x39,0x30,0x39,0x30,0x20,0x30,0x39,0x30,0xff,0x30,0x39,0x20,0x26,0x20,0x20,0x30,0x20,0x30,0x20,0x30,0x26,0x20,0x2b,0x20,0x30,0x20,0x30,0x20,0x2b,0x20,0x2b,0x20,0x2b,0x20,0x2b,0x20,0x2b,0x20,0x2b,0x20,0x26,0x30,0x20,0x30,0x20,0x20,0x39,0x20,0x26,0x10,0x2b,0x10,0x30,0x10,0x30,0x10,0x30,0x10,0xff,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x2b,0x30,0x26,0x30,0x39,0x30,0x20,0x30,0x26,0x30,0x20,0x30,0x20,0x30,0x20,0x20,0x20,0x20,0x30,0x20,0x30,0x20,0x30,0x20,0x30,0x20,0x30,0x20,0x30,0x30,0x26,0x30,0x26,0x30,0x20,0x30,0x20,0x30,0x20,0x30,0xff,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x20,0x30,0x20,0x30,0x20,0x30,0x26,0x30,0x2b,0x20,0x30,0x20,0x2b,0x20,0x2b,0x20,0x2b,0x20,0x2b,0x20,0x2b,0x20,0x2b,0x20,0x2b,0x30,0x26,0x20,0x2b,0x20,0x30,0x30,0x2b,0x30,0x2b,0x30,0x2b,0x30,0xff,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x2b,0x30,0x26,0x30,0x39,0x30,0x20,0x30,0x26,0x30,0x20,0x30,0x20,0x30,0xff,0x20,0x20,0x20,0x30,0x20,0x30,0x20,0x30,0x20,0x30,0x20,0x30,0x30,0x30,0x30,0x26,0x30,0x39,0x30,0x20,0x30,0x20,0x30,0x20,0x30,0xff,0x30,0xff,0x20,0x20,0x20,0x30,0x30,0x30,0x30,0x30,0x20,0x30,0x20,0x30,0x20,0x30,0x20,0xff,0x20,0x39,0x20,0x20,0x30,0x20,0x30,0x39,0x20,0x26,0x20,0x26,0x20,0x2b,0x20,0x30,0x30,0xff,0x20,0x30,0x20,0x2b,0x30,0x2b,0x30,0x2b,0x20,0x26,0x20,0x26,0x20,0x20,0x30,0x2b,0x20,0x26,0x20,0x30,0x30,0x30,0x30,0x30,0x30,0x00,//0xff,0xff,0x40,0x26,0x40,0x26,0x20,0x2b,0x20,0x2b,0x40,0x2b,0x40,0x2b,0x40, 0x2b,0x20,0x26,0x20,0x30,0x40,0x39,0x40,0x26,0x40,0x26,0x20,0x2b,0x20, 0x2b,0x40,0x2b,0x40,0x2b,0x40,0x2b,0x20,0x26,0x20,0x30,0x40,0x30,0x20, 0x39,0x20,0x39,0x20,0x39,0x20,0x20,0x40,0x20,0x20,0x26,0x20,0x20,0x20, 0x1c,0x20,0x30,0x40,0x20,0x40,0x20,0x20,0x26,0x20,0x20,0x20,0x26,0x20, 0x20,0x20,0x30,0x20,0x39,0x40,0x39,0x20,0x30,0x20,0x30,0x20,0x39,0x20, 0x39,0x40,0x30,0x40,0x2b,0x40,0x30,0x40,0x2b,0x40,0x26,0x40,0x26,0x40, 0xff,0x40,0x30,0x20,0x2b,0x20,0x2b,0x20,0x30,0x20,0x30,0x40,0x30,0x20, 0x30,0x20,0x2b,0x20,0x26,0x20,0x2b,0x20,0x30,0x20,0x26,0x40,0x26,0x40,0x2b,0x10,0x26,0x10,0x2b,0x10,0x2b,0x10,0x30,0x10,0x20,0x10,0x1c,0x40,0xff,0x40,0x00,0xff,0xff,0x40,0x26,0x40,0x26,0x20,0x2b,0x20,0x2b,0x40,0x2b,0x40,0x2b,0x40,0x2b,0x20,0x26,0x20,0x30,0x40,0x39,0x40,0x26,0x40,0x26,0x20,0x2b,0x20, 0x2b,0x40,0x2b,0x40,0x2b,0x40,0x2b,0x20,0x26,0x20,0x30,0x40,0x30,0x20, 0x39,0x20,0x39,0x20,0x39,0x20,0x20,0x40,0x20,0x20,0x26,0x20,0x20,0x20, 0x1c,0x20,0x30,0x40,0x20,0x40,0x20,0x20,0x26,0x20,0x20,0x20,0x26,0x20, 0x20,0x20,0x30,0x20,0x39,0x40,0x39,0x20,0x30,0x20,0x30,0x20,0x39,0x20, 0x39,0x40,0x30,0x40,0x2b,0x40,0x30,0x40,0x2b,0x40,0x26,0x40,0x26,0x40, 0xff,0x40,0x30,0x20,0x2b,0x20,0x2b,0x20,0x30,0x20,0x30,0x40,0x30,0x20, 0x30,0x20,0x2b,0x20,0x26,0x20,0x2b,0x20,0x30,0x20,0x26,0x40,0x26,0x40,0x2b,0x10,0x26,0x10,0x2b,0x10,0x2b,0x10,0x30,0x10,0x20,0x10,0x1c,0x40,0xff,0x40,0x00};//uchar zdjs=0, jp;del(yj);sbit voice=P3^4;sbit key1=P2^0;sbit key2=P2^1;sbit key3=P2^2;sbit key4=P2^3;sbit key5=P2^4;sbit key6=P2^5;sbit key7=P2^6;sbit key8=P2^7;sbit key9=P3^2; // 复位void main(){uint dpjs;uchar yj;TMOD=0x01,IE=0x82;TH0=0xd8, TL0=0xef;IT0=1;EA=1;EX0=1;TR0=1;while(!Flag)//执行一次就停止了先检测到的相应复位后有效{if(!key1) {P1=0x9E;Flag=1;dpjs=0;a=0;}//else if(!key2){del(yj);P1=0x24;Flag=1;dpjs=320;a=320;}//else if(!key3){P1=0x0C;Flag=1;dpjs=494;a=494;}//else if(!key4){P1=0x98;Flag=1;dpjs=814;a=814;}//else if(!key5){P1=0x48;Flag=1;dpjs=1102;a=1102;}//else if(!key6){P1=0x40;Flag=1;dpjs=1320;a=1320;}//else if(!key7){P1=0x1E;Flag=1;dpjs=1592;a=1592;}//else if(!key8){P1=0x00;Flag=1;dpjs=2030;a=2030;}//}while(Flag){zdjs=0;dpjs++; yj=sound[dpjs];dpjs++; jp=sound[dpjs];while(zdjs!=jp){if(yj!=0xff){if(yj!=0){voice=!voice;del(yj);}else{dpjs=a;break;}}else{voice=0;del(jp);}}}}time0() interrupt 1 using 1{TH0=0xd8, TL0=0xef; zdjs++;}del(yj){uchar yj2=2;while(yj!=0){while(yj2!=0) {yj2--; }yj2=2;yj--; }}void fuwei(void) interrupt 0 {Flag=0;P1=0xff;// dpjs=0;}。