0x00.前言

　　學了一下python的多執行緒，threading模組

　　感覺挺有意思的，隨便練手寫了一個很粗陋的windows下多執行緒掃線上ip的指令碼

　　指令碼沒什麼技術含量，純粹練手，掃一趟192的區域網要花個5分多鐘...主要是因為直接用的python呼叫system命令去ping...

0x01.程式碼

# Author: 昏鴉

import os
import threading

def scan(lis):
    ip = "192.168.1.{}"
    for i in lis:
        res = ''.join(os.popen('ping -n 2 
 
' + ip.format(i)).readlines())
        pattern = "([\d]+)% 丟失"
        drop = re.search(pattern,res).group(1)
        if '無法訪問' in res:
            continue
        else:
            if int(drop)< 51:
                print(ip.format(i))
            else:
                continue

if __name__ == '
 
__main__':
    threads = []
    for i in range(5):
        t = threading.Thread(target=scan,args=(list(range(i*51,i*51+51)),))
        threads.append(t)
    for t in threads:
        t.start()
    for t in threads:
        t.join()