#coding=utf-8

 #

 #   文件锁脚本测试

 #

 import os       #操作系统

 import time

 lockfilepath = "/opt/lock.txt";

 #判断文件是否存在

 if os.path.exists(lockfilepath):

     #文件存在，说明脚本正在执行

     print("脚本正在执行")

 else:

     #文件不存在，创建文件，并执行任务。

     lockfile = open(lockfilepath,"w+");

     print ("文件锁  任务模拟sleep 10s");

     time.sleep(10);

     print ("任务模拟结束 sleep over ");

     #删除文件

     os.remove(lockfilepath);

 #coding=utf-8

 import time

 import socket

 suo = 1

 try:

     global hyf_suo

     hyf_suo = socket.socket()

     addr = ('',98889)

     hyf_suo.bind(addr);

     suo = 1;

 except:

     suo = 2;

     print('already has an instance')

 if(suo==1):

     print ("锁住 sleep  ");

     time.sleep(10);

     print ("sleep over ");

 else:

     print("已经加锁了");