批量ping

for /L %D in (1,1,255) do ping 10.168.1.%D
for /L %D in (步数，开始，结束) do ping 10.168.1.%D
把ping的结果放到文件里：
for /L %D in (1,1,255) do ping -n 10.168.1.%D >> a.txt
ping通和ping不通的IP地址放在不同的文件里：
for /l %D in (1,1,5) do (ping 192.168.3.%D -n 1 && echo 192.168.3.%D>>ok.txt || echo 192.168.3.%D >> no.txt)
ip.txt里自己写ip地址：
for /f %D in (ip.txt) do (ping %D -n 1 && echo %D>>ok.txt || echo %D >>no.txt)