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#include <unistd.h>#include <fcntl.h>#include <sys/types.h>#include <sys/ioctl.h>#include <stdlib.h>#include <stdio.h>#include <linux/soundcard.h>/* ÏÂÃæµÄÈý¸ö²ÎÊýÊǸú¾ßÌåÎļþÏà¹ØµÄ£¬ÎļþʲôÑù£¬¾ÍÒªÉèÖóÉʲôÑù */
int main(){    int fd;     int wavfd; //wavÎļþµÄÃèÊö·û
    if (fd < 0) {        printf("open of /dev/dsp failed");        exit(1);}    wavfd = open("12193767609.wav",O_RDONLY);    if (wavfd < 0) {        printf("open of wav failed");        exit(1);  } 
/* .......... */    arg = CHANNELS;    status = ioctl(fd, SOUND_PCM_WRITE_CHANNELS, &arg);    if (status == -1)        perror("SOUND_PCM_WRITE_CHANNELS ioctl failed");    if (arg != CHANNELS)        perror("unable to set number of channels"); 
    /* ´ÓwavÎļþÖжÁbuf´óСµÄÄÚÈÝ£¬È»ºóдÈë/etc/dspÖУ¬Ö±µ½Îļþ½áÊø */     int time = 0; //¶¯Ì¬ÏÔʾ²¥·Åʱ¼äÓÃ
         /*status = ioctl(fd, SOUND_PCM_SYNC, 0);
        }}±¾³ÌÐòÖÐÐèÒªÒ»¸ö.wavÎļþ²ÅÄܲ¥·Å£¬Äã¿ÉÒÔµ½°Ù¶Èmp3ÉÏÈ¥ËÑË÷Ò»¸ö.wavÎļþ£¬·Åµ½³ÌÐòĿ¼Ï¡£È»ºó£¬°Ñ³ÌÐòÖеÄÎļþÃû¸Ä³É¸ÃÒôƵµÄÎļþÃû¡£


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main()
{int *p,i,a[10]={3,7,9,11,0,6,7,5,4,2};
printf("The original array:\n");
for(i=0;i<10;i++)
   printf("%d,",a[i]);
printf("\n");
p=a;
sort(p,10);
for(p=a,i=0;i<10;i++)
{printf("%d ",*p);p++;}
printf("\n");
}
sort(int x[],int n)
......

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Linux»·¾³ÏÂÓÃcÓïÑÔдµÄ²¥·ÅwavÎļþµÄС³ÌÐò

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