我们不得不说C语言是一种还算得上强大的语言，今天就来展示一下如何通过C语言去播放音乐：网上有很多这方面的资料，我只是稍加整理了一下，随便玩一下。
先来看第一个例程，这是比较简单的：
#include<stdio.h>
#include<dos.h>
#include<bios.h>
#include<time.h>
#include<graphics.h>
#define N1 32 /*一拍*/
#define N2 16
#define N4 8
#define N8 4
#define N16 2
#define END 0
/*其中：N1,N2,N4,N6,N8,N16分别代表
一拍,二分之一拍，四分之一拍，
八分之一拍，十六分之一拍。*/
/*声明一个图形显示*/
void printtext(unsigned char *temp[],int i, int color); /* 用于在屏幕上显示字符串 */
enum NOTES
{
C10=131,D10=147,E10=165,F10=175,G10=196,A10=220,B10=247,
/*低度音调分别是：1，2，3，4，5，6，7*/
C0=262, D0=286, E0=330, F0=349, G0=440, A0=440, B0=494,
/*中度音调分别是：1，2，3，4，5，6，7*/
C1=523, D1=158, E1=659, F1=698, G1=784, A1=880, B1=998,
/*高度音调分别是：1，2，3，4，5，6，7*/
C2=1047,D2=1175,E2=1319,F2=1397,G2=1568,A2=1760,B2=1976
/*高八度音调分别是：1，2，3，4，5，6，7*/
}
song1[]={
G0,N16,G0,N8,A0,N8,G0,N8,C1,N8,B0,N4,G0,N16,
G0,N8,A0,N8,G0,N8,D1,N8,C1,N4,G0,N16,G0,N8,G1,N8,
E1,N8,C1,N8,B0,N16,B0,N8,A0,N4,F1,N16,F1,N8,E1,
N8,C1,N8,D1,N8,C1,N4,END,END
/*以上是曲子代码,你可以嵌入自己喜欢的歌曲代码*/
/*注意:数组中的偶数元素代表音符奇数元素代表拍长.*/
};
song2[]={
C10,N1,D10,N1,E10,N1,F10,N1,G10,N1,A10,N1,B10,N1,
C10,N2,D10,N2,E10,N2,F10,N2,G10,N2,A10,N2,B10,N2,
C10,N4,D10,N4,E10,N4,F10,N4,G10,N4,A10,N4,B10,N4,
C10,N8,D10,N8,E10,N8,F10,N8,G10,N8,A10,N8,B10,N8,
C10,N16,D10,N16,E10,N16,F10,N16,G10,N16,A10,N16,B10,N16,
C0,N1,D0,N1,E0,N1,F0,N1,G0,N1,A0,N1,B0,N1,
C0,N2,D0,N2,E0,N2,F0,N2,G0,N2,A0,N2,B0,N2,
C0,N4,D0,N4,E0,N4,F0,N4,G0,N4,A0,N4,B0,N4,
C0,N8,D0,N8,E0,N8,F0,N8,G0,N8,A0,N8,B0,N8,
C0,N16,D0,N16,E0,N16,F0,N16,G0,N16,A0,N16,B0,N16,
C1,N1,D1,N1,E1,N1,F1,N1,G1,N1,A1,N1,B1,N1,
C1,N2,D1,N2,E1,N2,F1,N2,G1,N2,A1,N2,B1,N2,
C1,N4,D1,N4,E1,N4,F1,N4,G1,N4,A1,N4,B1,N4,
C1,N8,D1,N8,E1,N8,F1,N8,G1,N8,A1,N8,B1,N8,
C1,N16,D1,N16,E1,N16,F1,N16,G1,N16,A1,N16,B1,N16,
C2,N1,D2,N1,E2,N1,F2,N1,G2,N1,A2,N1,B2,N1,
C2,N2,D2,N2,E2,N2,F2,N2,G2,N2,A2,N2,B2,N2,
C2,N4,D2,N4,E2,N4,F2,N4,G2,N4,A2,N4,B2,N4,
C2,N8,D2,N8,E2,N8,F2,N8,G2,N8,A2,N8,B2,N8,
C2,N16,D2,N16,E2,N16,F2,N16,G2,N16,A2,N16,B2,N16,END
/*以上是音符测试代码,你可以通过系统发出的音调选择你需要的音符*/
/*注意:数组中的偶数元素代表音符奇数元素代表拍长.*/
};
song3[]= {
C0,N8,C0,N8,G0,N8,G0,N8,A0,N8,A0,N8,G0,N4,
F0,N8,F0,N8,E0,N8,E0,N8,D0,N8,D0,N8,C0,N4,
G0,N8,G0,N8,F0,N4,E0,N8,E0,N8,D0,N4,G0,N8,
G0,N8,F0,N8,F0,N8,E0,N8,E0,N8,D0,N4,C0,N8,
E0,N8,G0,N4,A0,N8,C1,N8,G0,N4,F0,N8,F0,N8,
E0,N8,E0,N4,D0,N8,D0,N8,C0,N4,C0,N8,C0,N8,
G0,N8,G0,N8,A0,N8,A0,N8,G0,N4,F0,N8,F0,N8,
E0,N8,E0,N8,D0,N8,D0,N8,C0,N4,G0,N8,G0,N8,
F0,N4,E0,N8,E0,N8,D0,N4,G0,N8,G0,N8,F0,N8,
F0,N8,E0,N8,E0,N8,D0,N4,C0,N8,E0,N8,G0,N4,
A0,N8,C1,N8,G0,N4,F0,N8,F0,N8,E0,N8,E0,N4,
D0,N8,D0,N8,C0,N4,END
/*以上是曲子代码,你可以嵌入自己喜欢的歌曲代码*/
/*注意:数组中的偶数元素代表音符奇数元素代表拍长.*/
};
song4[]= {
C10,N4,B0,N4,G0,N8,A0,N4,E0,N16,D0,N8,C0,N8,
D0,N8,G0,N8,E0,N8,E0,N4,E0,N8,G0,N8,E0,N8,
D0,N8,D0,N4,A0,N8,A0,N8,G0,N8,A0,N8,B0,N8,
G0,N8,G0,N8,E0,N4,C10,N8,B0,N8,G0,N8,A0,N4,
E0,N8,D0,N8,C0,N8,D0,N8,G0,N8,E0,N4,C0,N8,D0,N8,
E0,N4,G0,N8,E0,N8,D0,N4,C0,N8,B10,N8,C0,N8,B10,N8,
A10,N4,A0,N8,A0,N8,A0,N8,C1,N8,D1,N8, E1,N8,E1,N8,
C1,N8,A0,N8,A0,N8,B0,N16,A0,N16,G0,N8,E0,N8,A0,N8,
A0,N8,C1,N8,D1,N8,E1,N8,E1,N8,C1,N8,A0,N8,A0,N8,
B0,N8,A0,N8,B0,N16,A0,N16,G0,N8,E0,N8,D1,N16,D1,N16,D1,N8,
D1,N8,A0,N16,B0,N16,A0,N8,G0,N8,E0,N8,D1,N16,D1,N16,D1,N8,
A0,N16,B0,N16,A0,N8,G0,N8,E0,N8,A0,N8,A0,N8,A0,N4,A0,N8,
A0,N8,A0,N4,C10,N8,B0,N8,G0,N8,A0,N4,E0,N16,D0,N16,C0,N8,
D0,N8,G0,N8,E0,N4,E0,N4,E0,N16,G0,N16,E0,N16,
D0,N16,D0,N4,A0,N16,A0,N16,G0,N8,A0,N8,B0,N8,
G0,N16,G0,N16,E0,N4,C10,N8,B0,N8,G0,N8,A0,N4,
E0,N16,D0,N16,C0,N8,D0,N8,G0,N8,E0,N4,C0,N16,D0,N16,
E0,N4,G0,N8,E0,N8,D0,N4,C0,N8,B10,N8,C0,N16,B10,N16,
A10,N4,END};
union {
unsigned fre;
unsigned char c[2];
}tone;
/*以下是播放程序代码*/
void MusicPlay(int *song)
{
int note=0,dur,control;
clock_t goal;
while(song[note]!=0)
{
tone.fre=song[note];
dur=song[note+1]; /*节拍*/
if(kbhit())break;
/*int kbhit()函数返回最近所敲的按键*/
if(tone.fre)
{
outportb(0x43,0xB6);
/*函数void outportb(int port,char byte)
将字节byte写入指定的输出端口port*/
tone.fre=(unsigned)(1193180L/tone.fre);
outportb(0x42,tone.c[0]);
outportb(0x42,tone.c[1]);
control=inportb(0x61);
/*函数int inportb(int port)从指定的
输入端口读入一个字节,并返回这个字节*/
outportb(0x61,(control)|0x3);
}
goal=(clock_t)dur+clock();
while(goal>clock());
if(tone.fre)
outportb(0x61,control);
goal=(clock_t)0;
note=note+2;
}
}
/*以下是主函数其中包括异常处理*/
void main(void)
{ int n;
int graphdriver,graphmode;
unsigned char *text[7] ;
text[0]=" ";
text[1]="start music........";
text[2]="play the one music";
text[3]="play the two music";
text[4]="play the three music";
text[5]="play the four music";
text[6]="good_bye............";
graphdriver=DETECT;
graphmode=0;
initgraph(&graphdriver,&graphmode,""); /*系统初始化 */
cleardevice(); /* 清除屏幕 */
settextjustify(LEFT_TEXT,CENTER_TEXT); /*设置字符排列方式*/
printtext(text ,1, 1);
getch();
printtext(text ,2, 62);
MusicPlay(song1);
getch();
printtext(text ,3,4);
MusicPlay(song2);
getch();
printtext(text ,4, 58);
MusicPlay(song3);
getch();
printtext(text ,5, 61);
MusicPlay(song4);
getch();
printtext(text ,6, 63);
getch();
closegraph();
}
void printtext(unsigned char *temp[] , int i , int color)
{
setcolor(color);
settextstyle(TRIPLEX_FONT , HORIZ_DIR, 3);
outtextxy(100, 40+i*50 , temp[i]); /* 显示字符串 temp[i]是具体的指针*/
}