Win 95/98/me：
     將ms-dos模式打開，輸入ping 140.116.xxx.xxx
     就會出現ping的值如下：
Microsoft(R) Windows 98
   (C)Copyright Microsoft Corp 1981-1999.
                                                                                
C:\WINDOWS>ping 140.116.xxx.xxx
                                                                                
Pinging 140.116.51.7 with 32 bytes of data:
                                                                                
Reply from 140.116.xxx.xxx: bytes=32 time=10ms TTL=118
Reply from 140.116.xxx.xxx: bytes=32 time=10ms TTL=118
Reply from 140.116.xxx.xxx: bytes=32 time=10ms TTL=118
Reply from 140.116.xxx.xxx: bytes=32 time=10ms TTL=118
                                                                                
Ping statistics for 140.116.xxx.xxx:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 10ms,Maximum =10ms, Average =  10ms
                                                                                
                                                                                
其中最重要的是time的值上面有四個time值，如果是你是校內
在ping校內的，那麼time一般來說都會小於10
若是ping不到先確定對方沒有架設防火牆，不然就真的是故障了