linux c++(进程相关的函数 & 第二篇 子进程控制顺序)

  #include <stdio.h>
  #include <unistd.h>
  #include <stdlib.h>
  int main()
  {
      int n = 5;
      int i = 0;
      printf("Begin ......\n");
      pid_t pid=0;
      for(;i<n;++i)
      {   
          pid = fork();
          if(pid == 0)
          {   
              //son
              printf("I am child pid=%d,ppid=%d\n",getpid(),getppid());
              break;
          }else if(pid > 0)
          {   
  //            printf("I am father,pid=%d,ppid=%d\n",getpid(),getppid());
          }   
      }   
      sleep(i);
      if(i < 5)
      {   
         printf("I am child ,will exit,pid=%d,ppid=%d\n",getpid,getppid());
      }else{
          //father
          printf("I am parent,will out pid=%d,ppid=%d\n",getpid(),getppid());
      }   
      while(1)
      {   
          sleep(1);
      }   
      return 0;
  }

linux c++(进程相关的函数 & 第二篇 子进程控制顺序)

原文：https://www.cnblogs.com/lodger47/p/14729308.html