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#include <stdio.h>
typedef enum {
PLAYMODE = 1, // ĬÈÏ´Ó0¿ªÊ¼
PAUSEMODE,
STOPMODE = 5,
TRACKRPTMODE,
MIXMODE
}Status_t;
int main()
{
int n = 4;
sw ......
pid_t pid=fork()
it has 3 situation for the return result pid
0 child
>0 parent process
<0 fork fail
fork create a new process and it parent live alse when the child process had been created ......