Python3实现局域网存活主机扫描

import os
import time
import platform
import threading

def get_os():
  '''''
  get os 类型
  '''
  os = platform.system()
  if os == "Windows":
    return "n"
  else:
    return "c"
   
def ping_ip(ip_str):
  cmd = ["ping", "-{op}".format(op=get_os()),
      "1", ip_str]
  output = os.popen(" ".join(cmd)).readlines()
   
  flag = False
  for line in list(output):
    if not line:
      continue
    if str(line).upper().find("TTL") >=0:
      flag = True
      break
  if flag:
    print("ip: %s is ok ***"%ip_str)

def find_ip(ip_prefix):
  '''''
  给出当前的127.0.0 ，然后扫描整个段所有地址
  '''
  for i in range(1,256):
    ip = '%s.%s'%(ip_prefix,i)
    t = threading.Thread(target=ping_ip, args=(ip,))  # 注意传入的参数一定是一个元组!
    t.start()


if __name__ == "__main__":
  print("start time %s"%time.ctime())
  ip_prefix = "10.1.130"
  find_ip(ip_prefix)
  print("end time %s"%time.ctime())