return 0 与exit(0)
来源:互联网 发布:手机淘宝如何追加评价 编辑:程序博客网 时间:2024/04/30 05:46
点击(此处)折叠或打开
- #include "apue.h"
- int fun()
- {
- int pid;
- if((pid=fork())<0)
- printf("error\n");
- else if(pid==0)
- {
- printf("child..........1\n");
- //return 0;
- exit(0);
- }
- else
- {
- printf("parent..........1\n");
- return pid;
- }
- }
- int
- main(void)
- {
- int pid;
- pid=fun();
- if(pid==0)
- {
- printf("child.......2\n");
- exit(0);
- }
- else
- {
- printf("parent..........2\n");
- exit(2);
- }
- }
看下面一段程序。当子函数调用return 0的时候,只是函数返回,子进程并没有结束,当子函数调用exit(0)
时,子进程结束。转载请尊重原创、保留相关链接本文来自多宝平台:http://www.mbodb.com
运行结果:
return 0
exit(0)
0 0
- return 0 与exit(0)
- return 0 与exit(0)
- return 0 与exit(0)
- exit(0)与exit(1)、return区别
- exit(0)与exit(1)、return区别
- exit(0)与exit(1)、return区别
- exit(0)与exit(1)、return区别
- exit(0)与exit(1)、return区别
- exit(0)与exit(1)、return区别
- exit(0)与exit(1)、return区别
- exit(0)与exit(1)、return区别
- exit(0)与exit(1)、return区别
- exit(0)与exit(1)、return区别
- exit(0)与exit(1)、return区别
- exit(0)与exit(1)、return区别
- exit(0)与exit(1)、return区别
- exit(0)与exit(1)、return区别
- exit(0)与exit(1)、return区别
- 初步认识迭代服务器和并发服务器
- 如何写出更好的Java代码
- Sparse coding(稀疏编码)
- javaBean【01】javaBean简介及基本使用
- android studio drawable目录的分辨率
- return 0 与exit(0)
- 爱踢门CSDN博客被关
- Androdi 开发方面我是一只菜鸟
- POJ 3160 Father Christmas flymouse 强连通缩点+spfa最长路
- HDFS-RAID从Hadoop-0.22.0迁移到Hadoop-2.2.0
- python 3.x 与 2.x的区别
- 启动spring出错 org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catal
- 顶端由javascript代码完成:
- C/C++代码优化的27个建议