看有不有返回值。
看下面的。
C:\>ping
www.baidu.comPinging
www.a.shifen.com [220.181.6.6] with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
这上面的就是没PING通的结果。
再看下面
C:\>ping 192.168.0.1
Pinging 192.168.0.1 with 32 bytes of data:
Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
Ping statistics for 192.168.0.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
“Reply from 192.168.0.1: bytes=32 time<1ms TTL=64”
这就是PING通的返回值。