同事的ip经常变动但是mac地址不会变，总问有点麻烦，于是有了这个脚本 
import subprocess
import re
import platform
from concurrent.futures import ThreadPoolExecutor, as_completed
import socket

# 维护 MAC => 设备名 映射表（示例）
mac_name_map = {
    'XX-XX-X4-XF-X5-X9': '办公电脑-小明',
    'X0-XE-XF-XD-XB-XC': '手机-小美',
}

def get_local_subnet():
    hostname = socket.gethostname()
    local_ip = socket.gethostbyname(hostname)
    parts = local_ip...