读书笔记之linux/unix系统编程手册(26)

int main(int argc, char* argv[])
{

printf("hello world\n");
write(STDOUT_FILENO, "Ciao\n", 5);
int pid = fork();
if(pid == -1)
{
exit(0);
}else if(pid > 0)
{
int cid = wait(NULL);
printf("cid:%d\n", cid);

}else
{
int cid = wait(NULL);
printf("cid:%d\n", cid);
//_exit(0);

}
//both parent and children do below

return 0;
}