编程播放歌曲   



#include<stdio.h>
#include<dos.h>
#include<stdlib.h>
#include<time.h>

#include<conio.h>
#define N1 64
#define N2 32
#define N4 16
#define N8 8
#define N16 4
#define END 0
enum NOTES
{
  C10=131,D10=147,E10=165,F10=175,G10=196,A10=220,B10=247,
  C0=262,D0=296,E0 =330,F0=349,G0=392,A0=440,B0=494,
  C1=523,D1=587,E1=659,F1=698,G1=784,A1=880,B1=988,
  C2=1047,D2=1175,E2=1319,F2=1397,G2=1586,A2=1760,B2=1976
};
typedef  enum NOTES SONG;
SONG song[]={
    D0,N4,E0,N8,D0,N8,C0,N4,A10,N4,G10,N8,E10,N8,
                G10,N8,A10,N8,C0,N2,A10,N4,A10,N8,C0,N8,G10,N8,A0,N8,
                E0,N8,G0,N8,D0,N2,E0,N4,D0,N8,E0,N8,G0,N4,E0,N4,G10,
                N8,E10,N8,G10,N8,A10,N8,C0,N2,A10,N4,A10,N8,C0,N8,A10,
                N8,A10,N8,D10,N8,E10,N8,G10,N2,D0,N4,D0,N4,G0,N4,A0,N8,
                G0,N8,F0,N2,G0,N2,A0,N4,G0,N8,E0,N8,D0,N8,E0,N8,C0,N8,
                A10,N8,D0,N2,E0,N4,G0,N8,E0,N8,G0,N4,E0,N4,G10,N8,E10,
                N8,G10,N8,A10,N8,C0,N4,A10,N4,A10,N8,C0,N8,D0,N8,A10,
                N8,C0,N8,E0,N8,D0,N1,END,END


};
void main ()
{
    int note=0,fre,dur,control;
    clock_t goal;
    while (song[note]!=0)
    {
        fre=song[note];
        dur=song[note+1];
        if(kbhit())break;
        if(fre)
        {    outportb(0x43,0xb6);
             fre=(unsigned)(1193180L|fre);
             outportb(0x42,(char)fre);
             outportb(0x42,(char)(fre>>8));
             control=inportb(0x61);
             outportb(0x61,control|0x3);
        }
        goal=(clockid_t)dur+clock();
        while(goal>clock());
        if(fre)
            outportb(0x61,control);
        goal=(clock_t)0;
        note+=2;
    }