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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 ......
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 ......