[Python] Python一键扫描局域网在线IP和对应Mac地址

import os
import re
import threading
 
ips = []

def local_ip_mac():  #本机IP和MAC
    output = os.popen('ipconfig /all')
    for i in output:
        if '物理地址.' in i:
            mac = i.split(':')[1].strip()
        if 'IPV4' in i.upper() and '(' in i:
            ip = i.split(':')[1].split('(')[0].strip()
    if ip and mac:
        return [ip, mac]
 
def ip_online(ip):  #判断IP是否在线
    cmd = f'ping -n 1 {ip}'
    output = os.popen(cmd)
    if any('TTL' in i.upper() for i in output):
        ips.append(ip)

def ip2mac(ip):  #通过IP查MAC
    loc_ip, mac = local_ip_mac()
    if ip == loc_ip:
        return mac
    cmd = f'arp -a {ip}'
    output = os.popen(cmd)
    outstr = ' '.join(list(output))
    if '未找到 ARP 项' not in outstr:  #排除本机
        macs = re.findall('(([A-Fa-f0-9]{2}-){5}[A-Fa-f0-9]{2})', outstr, re.S)
        for i in macs[0]:
            if len(i) == 17:
                return i
 
def speed_up(func, args_list):  #多线程
    thread_list = []
    for i in args_list:
        t = threading.Thread(target=func, args=(i, ))
        thread_list.append(t)
    for t in thread_list:
        t.start()
    t.join()
 
if __name__ == '__main__':
    print('扫描中，稍等片刻...')
    loc_ip, mac = local_ip_mac()
    ip_range = '.'.join(loc_ip.split('.')[:-1])  #通过本机IP拼接IP段
    ip_list = [f'{ip_range}.{i+1}' for i in range(255)]
    speed_up(ip_online, ip_list)  #多线程扫描
    res = [(i, ip2mac(i)) for i in sorted(ips)]
    print('扫描结果：', sorted(res))