c版电子琴

这是老师布置的期末大作业  不想自己辛苦的果实被自己删除 所以选择写下来 可以给但是我一样的朋友一个借鉴吧  在此声明我的东西挺菜的 只是给个提示而已 

运行环境是win-tc

有很多有待完善的地方 

1.      播放歌曲的时候可以停止，再按播放的时候可以把未播放完的继续播放

2.      录曲功能

3.      播放录的歌曲

 

 

 

1.通过对8255并行接口，8253定时器的设置实现了扬声器的发声

       利用对SOUND（）函数的编写实现扬声器的开启，NOSOUND()函数的编写

       实现扬声器的关闭。

    2. 能实现不同音调和节拍的发音

          采用数组形式存储音调和节拍，其中音调是利用扬声器的发声频率定，而节拍则是

          对声音的延迟实现。

3. 能用键盘进行演奏

       利用while（）循环接听键盘，相应对应键的发声，当然无效键不予反应。

4. 具有乐谱的播放功能

       利用for（）调用事先存储节拍和音调的数组进行播放#include <graphics.h>#include <stdio.h>void music();void play();void Quit();void SOUND();void NOSOUND();void my_delay(int clicks);void text();void piano();void playsong();main(){ int mode;char cr; int driver=DETECT; initgraph(&driver,&mode,"d://tc3//bgi"); while(1){ text(); cr=bioskey(0); switch(cr) { case '1':music();break; case '2':play();break; case '3':Quit();break; } } cleardevice(); closegraph();}/*时间延迟设置 */void my_delay(int clicks){ unsigned int far *clock=(unsigned int far *)0x0000046CL; unsigned int now; now=*clock; while(abs(*clock-now)<clicks){}}/*扬声器的播放*/void SOUND(unsigned frequency) { union { /* 定义由-个整数和两个字符组成的联合 */ unsigned divisor; unsigned char c[2]; } tone; tone.divisor=300000/frequency; /* 计算该频率对应的定时器计数值 */ outportb(0x43,0xb6); /* 通知定时器采用新的计数 */ outportb(0x42,tone.c[0]); /* 计数低字节先送到定时器 */ outportb(0x42,tone.c[1]); /* 计数高字节后送到定时器 */ outportb(0x61,inportb(0x61) | 3 ); /* 使定时器到喇叭的输出有效 */}/*扬声器的关闭*/void NOSOUND(void) { outportb(0x61,inportb(0x61)&0xfc); /* 使定时器到喇叭的输出无效 */} /*退出设置*/void Quit(){ char ch; setcolor(0); settextstyle(0,0,2.5); outtextxy(200,370,"1:lesson music"); outtextxy(200,400,"2:play song"); outtextxy(200,430,"3: exit"); setcolor(11); settextstyle(0,0,1.8); outtextxy(180,420,"Are You Sure (Yes/no)?"); ch=getche(); if (ch=='y') { closegraph(); delay(100); exit(0); }else { setcolor(0); settextstyle(0,0,1.8); outtextxy(180,420,"Are You Sure (Yes/no)?"); setcolor(3); settextstyle(0,0,2.5); outtextxy(200,370,"1:lesson music"); outtextxy(200,400,"2:play song"); outtextxy(200,430,"3: exit"); }}/*频幕上字幕的显示*/void text(){ int x,y,i; char ch[2]; char str[]="zxcvbnmasdfghjqwertyukl;iop["; x=100; setcolor(RED); settextstyle(0,0,3.2); outtextxy(250,60,"Piano"); /*setcolor(BLUE); settextstyle(0,0,2); outtextxy(90,90,"Please the key to make sound"); *//*电子琴对应的按键 显示*/ settextstyle(0,0,1); setcolor(7); for(i=0;i<28;i++) { ch[0]=str[i]; ch[1]=0; outtextxy(x+5,150,ch); x+=15; }/*钢琴界面*/ piano();/*menu 的选择框*/ setcolor(6); rectangle(120,350,490,450); setcolor(3); settextstyle(0,0,2.5); outtextxy(200,370,"1:lesson music"); outtextxy(200,400,"2:play song"); outtextxy(200,430,"3: exit");} /*钢琴黑键的图形设置*/void piano(){ int i,j,stepx=100,stepy=170;/*白键的显示*/ setcolor(15); for(i=0;i<28;i++){ rectangle(stepx+i*15,stepy+0,stepx+i*15+15,stepy+100); setfillstyle(1,15); bar(stepx+i*15+2,stepy+0+2,stepx+i*15+15-2,stepy+100-2); }/*黑键的显示*/ setcolor(0); for(i=0;i<2;i++){ rectangle(stepx+i*15+10,stepy+0,stepx+i*15+20,stepy+50); setfillstyle(1,0); bar(stepx+i*15+10+2,stepy+0+2,stepx+i*15+20-2,stepy+50-2); } for(i=3;i<6;i++){ rectangle(stepx+i*15+10,stepy+0,stepx+i*15+20,stepy+50); setfillstyle(1,0); bar(stepx+i*15+10+2,stepy+0+2,stepx+i*15+20-2,stepy+50-2); } for(i=7;i<9;i++){ rectangle(stepx+i*15+10,stepy+0,stepx+i*15+20,stepy+50); setfillstyle(1,0); bar(stepx+i*15+10+2,stepy+0+2,stepx+i*15+20-2,stepy+50-2); } for(i=10;i<13;i++){ rectangle(stepx+i*15+10,stepy+0,stepx+i*15+20,stepy+50); setfillstyle(1,0); bar(stepx+i*15+10+2,stepy+0+2,stepx+i*15+20-2,stepy+50-2); } for(i=14;i<16;i++){ rectangle(stepx+i*15+10,stepy+0,stepx+i*15+20,stepy+50); setfillstyle(1,0); bar(stepx+i*15+10+2,stepy+0+2,stepx+i*15+20-2,stepy+50-2); } for(i=17;i<20;i++){ rectangle(stepx+i*15+10,stepy+0,stepx+i*15+20,stepy+50); setfillstyle(1,0); bar(stepx+i*15+10+2,stepy+0+2,stepx+i*15+20-2,stepy+50-2); } for(i=21;i<23;i++){ rectangle(stepx+i*15+10,stepy+0,stepx+i*15+20,stepy+50); setfillstyle(1,0); bar(stepx+i*15+10+2,stepy+0+2,stepx+i*15+20-2,stepy+50-2); } for(i=24;i<27;i++){ rectangle(stepx+i*15+10,stepy+0,stepx+i*15+20,stepy+50); setfillstyle(1,0); bar(stepx+i*15+10+2,stepy+0+2,stepx+i*15+20-2,stepy+50-2); }}/*当用户按下对应的音键时会发音而且对应的键会闪动*/void playsong(int i,int j){ int stepx=100,stepy=170; setfillstyle(1,15); bar(stepx+i*15,stepy+0,stepx+i*15+15,stepy+100); /*开启扬声器 相应对应的音键*/ SOUND(j); my_delay(3); /*关闭扬声器*/ NOSOUND(); setfillstyle(1,0); bar(stepx+i*15,stepy+0,stepx+i*15+15,stepy+100);}void play(){ int i,j,h=1; char ch; setcolor(0); settextstyle(0,0,2.5); outtextxy(200,370,"1:lesson music"); outtextxy(200,400,"2:play song"); outtextxy(200,430,"3: exit"); setcolor(13); settextstyle(0,0,1.5); outtextxy(150,390,"press the key to make music"); settextstyle(0,0,2); outtextxy(200,430,"1:exit"); while(h){ piano(); ch=bioskey(0); switch(ch) { case'z':i=0;j=131;break; case'x':i=1;j=147;break; case'c':i=2;j=165;break; case'v':i=3;j=176;break; case'b':i=4;j=196;break; case'n':i=5;j=220;break; case'm':i=6;j=247;break; case'a':i=7;j=262;break; case's':i=8;j=296;break; case'd':i=9;j=330;break; case'f':i=10;j=349;break; case'g':i=11;j=392;break; case'h':i=12;j=440;break; case'j':i=13;j=494;break; case'q':i=14;j=523;break; case'w':i=15;j=587;break; case'e':i=16;j=659;break; case'r':i=17;j=699;break; case't':i=18;j=784;break; case'y':i=19;j=880;break; case'u':i=20;j=988;break; case'k':i=21;j=1047;break; case'l':i=22;j=1175;break; case'i':i=23;j=1319;break; case'o':i=24;j=1397;break; case'p':i=25;j=1568;break; case'[':i=26;j=1760;break; case';':i=27;j=1976;break; } if(ch=='1') h=0; else playsong(i,j); } setcolor(3); settextstyle(0,0,2.5); outtextxy(200,370,"1:lesson music"); outtextxy(200,400,"2:play song"); outtextxy(200,430,"3: exit"); setcolor(0); settextstyle(0,0,1.5); outtextxy(150,390,"press the key to make music"); settextstyle(0,0,2); outtextxy(200,430,"1:exit");}void music(){ int frq1[]={ 0,1,2,3,4,5,6, 7,8,9,10,11,12,13, 14,15,16,17,18,19,20,21,22,23,24,25,26,27 }; int frq[]={131,147,165,176,196,220,247,262,294,330,349,392,440,494, 524,587,659,698,784,880,988, 1024,1174,1318,1396,1568,1760,1976, 2100,2352,2700,2854,2950,3024,3205};/*青花瓷*/ int timea[]={0,0,0,5,0,0,5,0,0,0,0,5,0,0,0,5, 0,0,5,0,0,0,0,5,0,0,0,5,0,0,5, 0,0,0,5,5,0,0,0,0,0,0,0,5,0,5, 5,0,0,0,5,0,5,5,0,0,0,0,5,0,0,0,5, 0,0,5,0,0,0,0,5,0,0,0,0,0,0,0, 5,0,0,0,0,0,0,5,0,5,5}; int songa[]={15,14,12,14,14,12,14,14,12,14,12,11, 15,14,12,14,14,12,14,14,16,15,14,14, 11,12,16,16,16,15,16,16,15,16,18,16, 16,16,16,15,15,15,15,15,14,16,15, 15,14,12,14,14,12,14,14,12,14,12,11, 15,14,12,14,14,12,14,14,16,15,14,14, }; int songa1[]={587,524,440,524,524,440,524,524,440,524,440,392, 587,524,440,524,524,440,524,524,659,587,524,524, 392,442,659,659,659,587,659,659,587,659,784,659, 659,659,659,587,587,587,587,587,524,659,587, 587,524,440,524,524,440,524,524,440,524,440,392, 587,524,440,524,524,440,524,524,659,587,524,524};/*长亭送别*/ int timeb[]={0,0,0,5,0,5,0,0,5,5,0,0,5,0,0,0,0,0,0,0,0, 5,0,0,0,5,0,0,0,5,0,5,0,0,5,5,0,0,5, 0,0,0,0,0,0,0,0,5,0,0,0,5,0,0,0,5, 0,0,0,5,0,5}; int songb[]={18,16,18,21,19,21,18,18,14,15,16,15,14,15, 18,16,18,21,20,19,21,18,18,15,16,17, 13,14,19,17,17,20,19,20,21,19,20,21, 19,19,18,16,14,15,18,16,18,21,20, 19,21,18,18,15,16,17,13,14}; int songb1[]={784,659,784,1024,880,1024,784,784,524, 587,659,587,524,587,784,659,784,1024, 988,880,1024,784,784,587,659,698,494, 524,880,698,698,988,880,988,1024,880, 988,1024,880,880,784,659,524,587,784, 659,784,1024,988,880,1024,784,784,587,659,698,694,524}; char ch; int b,h=1; setcolor(0); settextstyle(0,0,2.5); outtextxy(200,370,"1:lesson music"); outtextxy(200,400,"2:play song"); outtextxy(200,430,"3: exit"); setcolor(6); settextstyle(0,0,1.8); outtextxy(200,370,"1:song1"); outtextxy(200,390,"2:song2"); outtextxy(200,410,"3:song3"); outtextxy(200,430,"4:exit"); while(h){ ch=getche(); if(ch=='1'){ for(b=0;b<28;b++) {/*增加了两个piano();函数 实现连续播放不会出现界面的失真*/ piano(); playsong(frq1[b],frq[b]); piano(); my_delay(8); } } else if(ch=='2'){ for(b=0;b<71;b++) {/*增加了两个piano();函数 实现连续播放不会出现界面的失真*/ piano(); playsong(songa[b],songa1[b]); piano(); my_delay(3); my_delay(timea[b]); } } else if(ch=='3'){ for(b=0;b<57;b++) {/*增加了两个piano();函数 实现连续播放不会出现界面的失真*/ piano(); playsong(songb[b],songb1[b]); piano(); my_delay(3); my_delay(timeb[b]); } } else if(ch=='4'){ h=0; setcolor(0); settextstyle(0,0,1.8); outtextxy(200,370,"1:song1"); outtextxy(200,390,"2:song2"); outtextxy(200,410,"3:song3"); outtextxy(200,430,"4:exit"); setcolor(3); settextstyle(0,0,2.5); outtextxy(200,370,"1:lesson music"); outtextxy(200,400,"2:play song"); outtextxy(200,430,"3: exit"); } }}