c语言怎么使用数组播放下一首音乐,【数组编程面试题】面试问题：c语言MP3播…

#include

#include //CString的头文件

#include//使用当前时钟做种子

#include

#pragma comment(lib,"WINMM.LIB")

void jiemian()

{

printf("|-----------------------------------------------------|\n");

printf("|1-->顺序播放 **2-->随机播放 **3-->单曲循环播放|\n");

printf("|-----------------------------------------------------|\n");

printf("| |\n");

printf("|4-->切换指定歌曲 **5-->暂停 **6-->播放 |\n");

printf("|-----------------------------------------------------|\n");

printf("| |\n");

printf("|7-->上一首 **8-->下一首 **9-->停止 |\n");

printf("|-----------------------------------------------------|\n");

printf("| |\n");

printf("|10-->快进 **11-->后退 |\n");

printf("|-----------------------------------------------------|\n");

}

/*void play(int n)

{

MCIERROR re;

//FILE *fp;

CString fe;

char song[30];

printf("请输入歌名: ");

fflush(stdin);

gets(song);//输入曲目名称

fe.Format("open %s alias beatit",song);

re=mciSendString(TEXT(fe.GetBuffer(fe.GetLength())),0,0,0);//TEXT是宏变量,alias不能少

printf("\n");

mciSendString(TEXT("play beatit"),0,0,0);

//mciSendString("play D:\\KwDownload\\song\\3.mp3",NULL,0,NULL);

Sleep(10000000);

}*/

/*BOOL CMyDlg::OnInitDialog()

{

CDialog::OnInitDialog();

CFile file1("歌曲列表.lw",CFile::modeReadWrite|CFile::modeCreate);

if(file1.m_hFile==NuLL)

{

CFile file1("歌曲列表。lw",CFile::modeReadWrite|CFile::modeNoTruncate);

}

else

{

while(mpd.title!=NULL)

{

file1.Read(&mpd,sizeof(mpd));

int nRow=m_list.InsertItem(1,mpd,title);

m_list.SetItemText(nRow,1,mpd,arti);

if(mpd.head && "TAG")

{

CString str="MP3";

m_list.SetItemText(nRow,2,str);

}

file.Close;

}

}*/

/*void pause(int n)

{

mciSendString("pause movie",NULL,0,NULL);

}*/

int NUMBER()//获取歌曲总数量

{

int i=0;

FILE *fp;//指针指向文件；

char SongName[1024];

fp=fopen("列表.txt","r+");

if(fp==NULL)

{

printf("open failed\n");

exit(-1);

}

while(!feof(fp))

{

fgets(SongName,1024,fp);//将文件内的歌名逐行输入到SongName中储存；

i++;

}

return i;

}

void PlayList()//打开播放列表

{

FILE *fp;

char SongName[1024];

int i=0;

fp=fopen("列表.txt","r+");

if(fp==NULL)

{

printf("open failed\n");

exit(-1);

}

while(!feof(fp))

{

fgets(SongName,1024,fp);

i++;

printf("%d--%s",i,SongName);

}

printf("\n");

}

void PlayNext(int count,int gn)//播放下一首

{

MCIERROR def;//对函数进行声明，通过API函数mciSendString传递给MCI

CString str;//一种数据类型，能简化MFC的很多操作网上代码复制，看不懂；

FILE *fp;

long hour;

void PlayPast(int count,int gn);//播放上一首

void playsernumber();//指定序号播放

void RandomPlay();//随机播放

int i=0,len,k,s;

char song[1024]={0},sheet[1024];

hour=clock();

s=NUMBER();//将歌曲总数量赋值给s，方便下面使用；

fp=fopen("列表.txt","r+");//以只读的方式打开文本文档

if(fp==NULL)

{

printf("open failed!");

exit(-1);

}

while(!feof(fp))

{

//j++;

fgets(sheet,1024,fp);

i++;

if(i==count)

break;

}

len=strlen(sheet);//将整首歌名的长度赋值给len，方便下面将歌名传递给数组song[];

fflush(stdin);//清除读写缓冲区，需要立即把输出缓冲区的数据stdin进行物理写入；

if(i==s)//判断是不是最后一首歌，最后一行歌名如果有回车，就把回车去掉；

{

for(k=0;k

{

song[k]=sheet[k];

}

else if(i

{

for(k=0;k

song[k]=sheet[k];

}

str.Format("open %s alias Mysong",song);//将歌曲打开

def=mciSendString(TEXT(str.GetBuffer(str.GetLength())),0,0,0);//这个函数是为一个CString对象重新获取其内部字符缓冲区的指针,

//返回的LPTSTR为非const的,从而允许直接修改CString中的内容。

mciSendString(TEXT("play Mysong"),0,0,0);//进行歌曲播放；这三句都是网上复制的代码

//Sleep(240000);

while(scanf("%d",&gn)!=EOF)

{

if(gn==5)//歌曲暂停

{

mciSendString(TEXT("pause Mysong"),0,0,0);

printf("successful\n");

}

else if(gn==6)//歌曲继续播放

{

mciSendString(TEXT("resume Mysong"),0,0,0);

printf("successful\n");

}

else if(gn==7)//播放上一首

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

count=count-1;

if(count<1)

count=s;

printf("successful\n");

PlayPast(count,gn);//播放上一首

}

else if(gn==8)//播放下一首

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);//先将正在播放的歌曲关闭

count=count+1;

if(count>s)

count=1;

printf("successful\n");

PlayNext(count,gn);

}

else if(gn==9)//停止播放

{

mciSendString(TEXT("stop Mysong"), 0, 0, 0);

mciSendString (TEXT("close Mysong"), 0, 0, 0);

printf("successful\n");

}

else if(gn==4)//指定歌曲进行播放

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

printf("successful\n");

playsernumber();

}

else if(gn==3)//单曲循环播放

{

mciSendString(TEXT("play Mysong repeat"), 0, 0, 0);

printf("successful\n");

}

else if(gn==2)//随机播放

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

RandomPlay();

}

else if(gn==10)//快进

{

hour=hour+5000;

str.Format("seek Mysong to %ld",hour);

mciSendString(TEXT(str.GetBuffer(str.GetLength())),0,0,0);

mciSendString(TEXT("play Mysong"),0,0,0);

printf("successful\n");

}

else if(gn==11)//快退

{

hour=hour-5000;

if(hour<0)

hour=0;

str.Format("seek Mysong to %ld",hour);

mciSendString(TEXT(str.GetBuffer(str.GetLength())),0,0,0);

mciSendString(TEXT("play Mysong"),0,0,0);

printf("successful\n");

}

Sleep(300000);

}

void PlayPast(int count,int gn)//播放上一首

{

MCIERROR def;//对函数进行声明，通过API函数mciSendString传递给MCI

CString str;//一种数据类型，能简化MFC的很多操作网上代码复制，看不懂；

FILE *fp;

int i=0,len,k,s;

long hour;

char song[1024]={0},sheet[1024];

void PlayNext(int count,int gn);//播放下一首

void playsernumber();//指定序号播放

void RandomPlay();//随机播放

hour=clock();//c++里面的计时函数

s=NUMBER();//将歌曲总数量赋值给s，方便下面使用；

fp=fopen("列表.txt","r+");

if(fp==NULL)

{

printf("open failed!");

exit(-1);

}

while(!feof(fp))

{

//j++;

fgets(sheet,1024,fp);

i++;

if(i==count)

break;

}

len=strlen(sheet);//将整首歌名的长度赋值给len，方便下面将歌名传递给数组song[];

fflush(stdin);//清除读写缓冲区，需要立即把输出缓冲区的数据stdin进行物理写入

if(i==s)

{

for(k=0;k

{

song[k]=sheet[k];

}

else if(i

{

for(k=0;k

song[k]=sheet[k];

}//printf("%s %s",song,sheet);

//song[k+1]='\0';

str.Format("open %s alias Mysong",song);//将歌曲打开

def=mciSendString(TEXT(str.GetBuffer(str.GetLength())),0,0,0);//这个函数是为一个CString对象重新获取其内部字符缓冲区的指针,

//返回的LPTSTR为非const的,从而允许直接修改CString中的内容。

mciSendString(TEXT("play Mysong"),0,0,0);//歌曲播放

//Sleep(240000);

while(scanf("%d",&gn)!=EOF)

{

if(gn==5)//暂停

{

mciSendString(TEXT("pause Mysong"),0,0,0);

printf("successful\n");

}

else if(gn==6)//暂停后播放

{

mciSendString(TEXT("resume Mysong"),0,0,0);

printf("successful\n");

}

else if(gn==7)//播放上一首

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

count=count-1;

if(count<1)

count=s;

printf("successful\n");

PlayPast(count,gn);//播放上一首

}

else if(gn==8)//播放下一首

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

count=count+1;

if(count>s)

count=1;

printf("successful\n");

PlayNext(count,gn);

}

else if(gn==9)//停止播放

{

mciSendString(TEXT("stop Mysong"), 0, 0, 0);

mciSendString (TEXT("close Mysong"), 0, 0, 0);

printf("successful\n");

}

else if(gn==4)//随机播放

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

printf("successful\n");

playsernumber();

}

else if(gn==3)//单曲循环

{

mciSendString(TEXT("play Mysong repeat"), 0, 0, 0);

printf("successful\n");

}

else if(gn==2)//随机播放

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

RandomPlay();

}

else if(gn==10)//快进

{

hour=hour+5000;

str.Format("seek Mysong to %ld",hour);

mciSendString(TEXT(str.GetBuffer(str.GetLength())),0,0,0);

mciSendString(TEXT("play Mysong"),0,0,0);

printf("successful\n");

}

else if(gn==11)//快退

{

hour=hour-5000;

if(hour<0)

hour=0;

str.Format("seek Mysong to %ld",hour);

mciSendString(TEXT(str.GetBuffer(str.GetLength())),0,0,0);

mciSendString(TEXT("play Mysong"),0,0,0);

printf("successful\n");

}

Sleep(300000);

}

void playsernumber() //指定序号播放

{

MCIERROR def;

FILE *fp;

long hour;

char song[1024]={0};

char sheet[1024]; //歌单;

CString str;

int j=0,k=0,count=0,num,len,gn,n;

void RandomPlay();//随机播放

hour=clock();

n=NUMBER();

//printf("%d\n",n);

fp=fopen("列表.txt","r+");

printf("请输入歌前面指定数字进行播放\n");

scanf("%d",&num);

if(fp==NULL)

{

printf("open failed!");

exit(-1);

}

while(!feof(fp))

{

//j++;

fgets(sheet,1024,fp);

count++;

if(count==num)

break;

}

len=strlen(sheet);

fflush(stdin);

if(count==n)

{

for(k=0;k

{

song[k]=sheet[k];

}

else if(count

{

for(k=0;k

song[k]=sheet[k];

}

str.Format("open %s alias Mysong",song);

def=mciSendString(TEXT(str.GetBuffer(str.GetLength())),0,0,0);

mciSendString(TEXT("play Mysong"),0,0,0);

while(scanf("%d",&gn)!=EOF)

{

if(gn==5)

{

mciSendString(TEXT("pause Mysong"),0,0,0);

printf("successful\n");

}

else if(gn==6)

{

mciSendString(TEXT("resume Mysong"),0,0,0);

printf("successful\n");

}

else if(gn==7)

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

count=count-1;

if(count<1)

count=n;

printf("successful\n");

PlayPast(count,gn);//播放上一首

}

else if(gn==8)

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

count=count+1;

if(count>n)

count=1;

printf("successful\n");

PlayNext(count,gn);

}

else if(gn==9)

{

mciSendString(TEXT("stop Mysong"), 0, 0, 0);

mciSendString (TEXT("close Mysong"), 0, 0, 0);

printf("successful\n");

}

else if(gn==4)

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

printf("successful\n");

playsernumber();

}

else if(gn==3)

{

mciSendString(TEXT("play Mysong repeat"), 0, 0, 0);

printf("successful\n");

}

else if(gn==2)

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

RandomPlay();

}

else if(gn==10)//快进

{

hour=hour+5000;

str.Format("seek Mysong to %ld",hour);

mciSendString(TEXT(str.GetBuffer(str.GetLength())),0,0,0);

mciSendString(TEXT("play Mysong"),0,0,0);

printf("successful\n");

}

else if(gn==11)//快退

{

hour=hour-5000;

if(hour<0)

hour=0;

str.Format("seek Mysong to %ld",hour);

mciSendString(TEXT(str.GetBuffer(str.GetLength())),0,0,0);

mciSendString(TEXT("play Mysong"),0,0,0);

printf("successful\n");

}

Sleep(300000);

}

void RandomPlay() //随机播放

{

MCIERROR def;

FILE *fp;

long hour;

char song[1024]={0};

char sheet[1024]; //歌单;

CString str;

int j=0,k=0,count=0,num,len,gn,n;

hour=clock();

n=NUMBER();

//printf("%d\n",n);

fp=fopen("列表.txt","r+");

srand( (unsigned)time( NULL ) );

num=rand()%n+1;

if(fp==NULL)

{

printf("open failed!");

exit(-1);

}

while(!feof(fp))

{

//j++;

fgets(sheet,1024,fp);

count++;

if(count==num)

break;

}

len=strlen(sheet);

fflush(stdin);

if(count==n)

{

for(k=0;k

{

song[k]=sheet[k];

}

else if(count

{

for(k=0;k

song[k]=sheet[k];

}

str.Format("open %s alias Mysong",song);

def=mciSendString(TEXT(str.GetBuffer(str.GetLength())),0,0,0);

mciSendString(TEXT("play Mysong"),0,0,0);

while(scanf("%d",&gn)!=EOF)

{

if(gn==5)

{

mciSendString(TEXT("pause Mysong"),0,0,0);

printf("successful\n");

}

else if(gn==6)

{

mciSendString(TEXT("resume Mysong"),0,0,0);

printf("successful\n");

}

else if(gn==7)

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

count=count-1;

if(count<1)

count=n;

printf("successful\n");

PlayPast(count,gn);//播放上一首

}

else if(gn==8)

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

count=count+1;

if(count>n)

count=1;

printf("successful\n");

PlayNext(count,gn);

}

else if(gn==9)

{

mciSendString(TEXT("stop Mysong"), 0, 0, 0);

mciSendString (TEXT("close Mysong"), 0, 0, 0);

printf("successful\n");

}

else if(gn==4)

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

printf("successful\n");

playsernumber();

}

else if(gn==3)

{

mciSendString(TEXT("play Mysong repeat"), 0, 0, 0);

printf("successful\n");

}

else if(gn==2)

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

RandomPlay();

}

else if(gn==10)//快进

{

hour=hour+5000;

str.Format("seek Mysong to %ld",hour);

mciSendString(TEXT(str.GetBuffer(str.GetLength())),0,0,0);

mciSendString(TEXT("play Mysong"),0,0,0);

printf("successful\n");

}

else if(gn==11)//快退

{

hour=hour-5000;

if(hour<0)

hour=0;

str.Format("seek Mysong to %ld",hour);

mciSendString(TEXT(str.GetBuffer(str.GetLength())),0,0,0);

mciSendString(TEXT("play Mysong"),0,0,0);

printf("successful\n");

}

Sleep(300000);

}

void SequentialPlay() //顺序播放

{

MCIERROR re;

FILE *fp;

long here;

char song[1024]={0};

char sheet[1024],slen[30]={0}; //歌单;

long int llen;

CString fe;

int j=0,k=0,count=0,num,len,n;

void RandomPlay();//随机播放

void playsernumber(); //指定序号播放

here=clock();

n=NUMBER();

//printf("%d\n",n);

fp=fopen("列表.txt","r+");

//printf("请输入歌前面指定数字进行播放\n");

num=1;

if(fp==NULL)

{

printf("open failed!");

exit(-1);

}

while(!feof(fp))

{

//j++;

fgets(sheet,1024,fp);

count++;

if(count==num)

break;

}

len=strlen(sheet);

fflush(stdin);

if(count==n)

{

for(k=0;k

{

song[k]=sheet[k];

}

else if(count

{

for(k=0;k

song[k]=sheet[k];

}

fe.Format("open %s alias Mysong",song);

re=mciSendString(TEXT(fe.GetBuffer(fe.GetLength())),0,0,0);

mciSendString(TEXT("play Mysong"),0,0,0);

mciSendString(TEXT("status Mysong length"),slen,255,0);//网上参考

llen=strtol(slen,0,0);

Sleep(llen);

mciSendString (TEXT("close Mysong"), 0, 0, 0);

while(n--)

{

num++;

if(fp==NULL)

{

printf("open failed!");

exit(-1);

}

while(!feof(fp))

{

//j++;

fgets(sheet,1024,fp);

count++;

if(count==num)

break;

}

len=strlen(sheet);

fflush(stdin);

if(count==n)

{

for(k=0;k

{

song[k]=sheet[k];

}

else if(count

{

for(k=0;k

song[k]=sheet[k];

}

fe.Format("open %s alias Mysong",song);

re=mciSendString(TEXT(fe.GetBuffer(fe.GetLength())),0,0,0);

mciSendString(TEXT("play Mysong"),0,0,0);

mciSendString(TEXT("status Mysong length"),slen,255,0);//网上参考

llen=strtol(slen,0,0);

Sleep(llen);

mciSendString (TEXT("close Mysong"), 0, 0, 0);

}

/*while(scanf("%d",&gn)!=EOF)

{

if(gn==5)

{

mciSendString(TEXT("pause Mysong"),0,0,0);

printf("successful\n");

}

else if(gn==6)

{

mciSendString(TEXT("resume Mysong"),0,0,0);

printf("successful\n");

}

else if(gn==7)

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

count=count-1;

if(count<1)

count=n;

printf("successful\n");

PlayPast(count,gn);//播放上一首

}

else if(gn==8)

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

count=count+1;

if(count>n)

count=1;

printf("successful\n");

PlayNext(count,gn);

}

else if(gn==9)

{

mciSendString(TEXT("stop Mysong"), 0, 0, 0);

mciSendString (TEXT("close Mysong"), 0, 0, 0);

printf("successful\n");

}

else if(gn==4)

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

printf("successful\n");

playsernumber();

}

else if(gn==3)

{

mciSendString(TEXT("play Mysong repeat"), 0, 0, 0);

printf("successful\n");

}

else if(gn==2)

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

RandomPlay();

}

else if(gn==10)//快进

{

here=here+50000;

fe.Format("seek Mysong to %ld",here);

mciSendString(TEXT(fe.GetBuffer(fe.GetLength())),0,0,0);

mciSendString(TEXT("play Mysong"),0,0,0);

printf("successful\n");

}

else if(gn==11)//快退

{

here=here-50000;

if(here<0)

here=0;

fe.Format("seek Mysong to %ld",here);

mciSendString(TEXT(fe.GetBuffer(fe.GetLength())),0,0,0);

mciSendString(TEXT("play Mysong"),0,0,0);

printf("successful\n");

}

Sleep(300000);*/

}

int main()

{

int n;

int num;

jiemian();

printf("\n");

NUMBER();

PlayList();

num=NUMBER();

while(scanf("%d",&n)!=EOF)

{

if(n==4)

{

jiemian();

playsernumber();

}

else if(n==2)

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

RandomPlay();

}

else if(n==1)

{

jiemian();

SequentialPlay();

}

/*else if(n==1)

{

mciSendString (TEXT("close Mysong"), 0, 0, 0);

SequentialPlay();

}*/

}

return 0;

}

/*#include

#include

int main()

{

printf("如果你三秒钟之内什么也不输入，我就输出-1。\n");

Sleep(3000);

if(!_kbhit())

printf("-1\n");

else

printf("输入了%c", getchar());

return 0;

}*/

/*#include

#include

void main( )

{int i;

srand( (unsigned)time( NULL ) );

for( i = 0; i < 10;i++ )

printf( "%d\n", rand()%100+1);

}*/

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