lua 中实现判断是否为局域网 IP

print(is_lan_ip("192.168.1.1")) -- trueprint(is_lan_ip("8.8.8.8")) -- false

function is_lan_ip(ip)  -- Split the IP address into its octets  local octets = {}  for octet in ip:gmatch("%d+") do    table.insert(octets, tonumber(octet))  end
  -- Check if the IP is in the range of private IP addresses  if octets[1] == 10 then    return true  elseif octets[1] == 172 and octets[2] >= 16 and octets[2] <= 31 then    return true  elseif octets[1] == 192 and octets[2] == 168 then    return true  else    return false  endend