python3 多线程ping当前网段主机是否存活

1. python3 多线程

# 主线程只负责生成工作线程
# 工作线程只做具体的工作
# 多线程共享进程里的内存块
# 多进程不共享

import threading

def Hello(world, tedu):
    print('Hello %s %s!' % (world,tedu))

if __name__ == '__main__':
    for i in range(3):
        th = threading.Thread(target=Hello, args=('world','tedu'))  # 创建工作线程
        th.start()  # 启动工作线程

2.. python3 多线程ping当前网段主机是否存活

# 多线程的方式ping当前11网段主机
import subprocess
import threading

def ping_host(hosts):
    result_ping = subprocess.run("ping %s -c 2 &> /dev/null" % hosts, shell=True)
    if result_ping.returncode == 0:
        print('%s is up' % hosts)
    else:
        print('%s is down' % hosts)

if __name__ == '__main__':
    iplist = [ '192.168.11.%s' % hosts for hosts in range(1,255)]
    for hosts in iplist:
        th = threading.Thread(target=ping_host, args=(hosts,))
        th.start()