音乐播放器程序源代码及注释:#include <reg52.h>#define uchar unsigned char#define uint unsigned intsbit duan=P2^6;sbit key1=P3^2;//按key1可切换花样sbit key2=P3^3;//按key2可切换歌曲sbit fm=P2^4;//蜂鸣器连续的IO口sbit P30=P3^0;//矩阵键盘的一列uchar code huayang1[]={0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf};//花样1uchar code huayang2[]={0x7f,0xfe,0xbf,0xfd,0xdf,0xfb,0xef,0xf7,0xef,0xfb,0xdf,0xfd,0xbf,0xfe};//花样2uchar code huayang3[]={0x7f,0x3f,0x1f,0x0f,0x07,0x03,0x01,0x0,0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe,0xff}; char code huayang4[]={ 0x55,0xaa,0xcc,0x33,0x99,0x66,0x0f,0xf0}; uchar count1;//花样标志uchar count2;//歌曲标志uchar timeh,timel,i;//编程规则:字节高位是简谱,低位是持续时间,//代表多少个十六分音符//1-7代表中央C调,8-E代表高八度,0代表停顿//最后的0是结束标志uchar code qnzl[]={ //千年之恋0x12,0x22,0x34,0x84,0x74,0x54,0x38,0x42,0x32,0x22,0x42,0x34,0x84,0 x72,0x82,0x94,0xA8,0x08,//前奏0x32,0x31,0x21,0x32,0x52,0x32,0x31,0x21,0x32,0x62,//竹林的灯火到过的沙漠0x32,0x31,0x21,0x32,0x82,0x71,0x81,0x71,0x51,0x32,0x22,//七色的国度不断飘逸风中0x32,0x31,0x21,0x32,0x52,0x32,0x31,0x21,0x32,0x62,//有一种神秘灰色的旋涡0x32,0x31,0x21,0x32,0x83,0x82,0x71,0x72,0x02,//将我卷入了迷雾中0x63,0xA1,0xA2,0x62,0x92,0x82,0x52,//看不清的双手0x31,0x51,0x63,0x51,0x63,0x51,0x63,0x51,0x62,0x82,0x7C,0x02,//一朵花传来谁经过的温柔0x61,0x71,0x82,0x71,0x62,0xA2,0x71,0x76,//穿越千年的伤痛0x61,0x71,0x82,0x71,0x62,0x52,0x31,0x36,//只为求一个结果0x61,0x71,0x82,0x71,0x62,0xA3,0x73,0x62,0x53,//你留下的轮廓指引我0x42,0x63,0x83,0x83,0x91,0x91,//黑夜中不寂寞0x61,0x71,0x82,0x71,0x62,0x0A2,0x71,0x76,//穿越千年的哀愁0x61,0x71,0x82,0x71,0x62,0x52,0x31,0x36,//是你在尽头等我0x61,0x71,0x82,0x71,0x62,0xA3,0x73,0x62,0x53,//最美丽的感动会值得0x42,0x82,0x88,0x02,0x74,0x93,0x89,0xff//结束标志//用一生守候};uchar code jmszl[]={ //寂寞沙洲冷0x12,0x12,0x22,0x32,0x31,0x22,0x21,0x22,//自你走后心憔悴0x21,0x31,0x51,0x52,0x31,0x52,0x61,0x15,0x14,//白色油桐风中纷飞0x51,0x52,0x31,0x52,0x62,0x13,0x11,0x13,0x32,0x28,0x08,0x28, //落花似人有情这个季节0x31,0x32,0x31,0x32,0x11,0x21,0x51,0x52,0x51,0x52,//河畔的风放肆拼命地吹0x51,0x51,0x31,0x32,0x31,0x32,0x81,0x72,0x63,//不断拨弄离人的眼泪0x62,0x71,0x81,0x72,0x61,0x61,0x52,0x31,0x21,0x32,0x51,0x54,//那样浓烈的爱再也无法给0x22,0x12,0x11,0x12,0x11,0x12,0x12,0x14,0x26,0x32,0x26,//伤感一夜一夜0x32,0x61,0x51,0x51,0x31,0x31,0x21,0x31,0x51,0x61,0x51,0x31,0x51,//当记忆的线缠绕过往支离破碎0x02,0x32,0x81,0x81,0x81,0x81,0x62,0x52,0x34,//是慌乱占据了心扉0x31,0x81,0x81,0x81,0x61,0x91,0x82,//有花儿伴着蝴蝶0x51,0x51,0x51,0x51,0x31,0x61,0x53,//孤雁可以双飞0x21,0x11,0x21,0x11,0x22,0x11,0x21,0x26,//夜深人静独徘徊0x32,0x61,0x51,0x51,0x31,0x31,0x21,0x31,0x51,0x61,0x51,0x31,0x51,0x52, //当幸福恋人寄来红色分享喜悦0x31,0x31,0x81,0x81,0x81,0x61,0x91,0x81,0x61,0x31,0x56,//闭上双眼难过头也不敢回0x32,0x32,0x81,0x81,0x81,0x81,0x91,0x81,0x61,0x81,0x61,0x51,0x31,0x51, 0x34,//仍然捡尽寒枝不肯安歇微带着后悔0x21,0x31,0x51,0x31,0x21,0x11,0x61,0x21,0x16,//寂寞沙洲我该思念谁0xff};uchar code cuzhi[]={0xff,0xff,//占位0xFC,0x8E,//中央C调1-70xFC,0xED,0xFD,0x43,0xFD,0x6A,0xFD,0xB3,0xFD,0xF3,0xFE,0x2D,0xFE,0x47, //高八度1-70xFE,0x76,0xFE,0xA1,0xFE,0xC7,0xFE,0xD9,0xFE,0xF9,0xFF,0x16};uchar yinyue[]={0xff,0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,0x0,0x0};//将音调转化为对应的LED样式void delay1(uint z); //延时1MSvoid delay(uint z); //延时165MS,即十六分音符void song();void beep();//蜂鸣器叫一声main(){ uchar x;count1=0;//流水灯无花样count2=1;//唱第一首歌P30=0;//选取矩阵键盘的一列EA=1;//开总中断EX0=1;//开外部中断0IT0=1;//外部中断0下降沿触发方式EX1=1;//开外部中断1IT1=1;//外部中断1下降沿触发方式TMOD=0x01;//定时器0工作在方式1TH0=0;TL0=0;ET0=1;while(1){if(count1!=0){switch(count1){case 1:for(x=0;x<14;x++){duan=1;P1=huayang1[x];beep();delay1(300);duan=0;if(count1!=1)break;}break;case 2:for(x=0;x<14;x++){duan=1;P1=huayang2[x];beep();delay1(300);duan=0;if(count1!=2)break;}break;case 3:for(x=0;x<16;x++){duan=1;P1=huayang3[x];beep();delay1(300);duan=0;if(count1!=3)break;}break;case 4:for(x=0;x<8;x++){duan=1;P1=huayang4[x];beep();delay1(300);duan=0;if(count1!=4)break;}break;}}else{song();delay1(1000);}}}void int0() interrupt 0{EA=0;//关总中断delay1(1);//去抖if(key1==0){count2=0;//不让蜂鸣器唱歌TR0=0;count1++;if(count1==5)count1=1;}EA=1;//开总中断}void int1() interrupt 2{EA=0;//关总中断delay1(1);//去抖if(key2==0){count1=0;//流水灯无花样TR0=1;i=0;//从头开始唱count2++;if(count2==3)count2=1;}EA=1;//开总中断}void timer0() interrupt 1 //用于产生各种音调{TH0=timeh;TL0=timel;fm=~fm;}void song(){uint temp;uchar jp;//jp是简谱i=0;while(1){ if(count2==0){break;}if(count2==1) //选曲temp=qnzl[i];if(count2==2)temp=jmszl[i];if(temp==0xff)break;jp=temp/16; //取数的高4位duan=1;P1=yinyue[jp];duan=0;if(jp!=0){timeh=cuzhi[jp*2];timel=cuzhi[jp*2+1];}else{TR0=0;fm=1;//关蜂鸣器}delay(temp%16); //取数的低4位TR0=0; //唱完一个音停10MS fm=1;delay1(10);TR0=1;i++;}TR0=0;fm=1;}void delay(uint z) //延时165MS,即十六分音符{ uint x,y;for(x=z;x>0;x--)for(y=19000;y>0;y--);}void delay1(uint z) //延时1MS{ uint x,y;for(x=z;x>0;x--)for(y=112;y>0;y--);}void beep() //蜂鸣器叫一声{ uchar i;for(i=0;i<50;i++){ fm=~fm;delay1(1);}fm=1; }。