linux fork 笔记

1. fork出多个子进程：

int status,i;
for (i = 0; i < 10; i++)
{
  status = fork();
  if (status == 0 || status == -1) break;
}
if (status == -1)
{
  //error
}
else if (status == 0)
{
  //sub process
}
else
{
  //parent process
}