for /L %%A in(1,1,254) do ping 192.168.1.%%A |find "Reply" >>ip.txt //1开始，步进=1，到254
for /F %%A in (ip.txt) do arp -s %%a ///F从文件中取每一行
for /D %%A in (*.*) do dir $$A // /D 取目录名