oneleaf 写了：输入 ifconfig 贴上了看看？
sida@WhiteCat:~$ ifconfig
eth0 Link encap:Ethernet HWaddr ec:9a:74:43:d0:e5
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:1184 errors:0 dropped:0 overruns:0 frame:0
TX packets:1184 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:87586 (87.5 KB) TX bytes:87586 (87.5 KB)
wlan0 Link encap:Ethernet HWaddr e4:d5:3d:78:b6:2f
inet addr:192.168.0.108 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::e6d5:3dff:fe78:b62f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:711 errors:0 dropped:0 overruns:0 frame:127212
TX packets:707 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:79848 (79.8 KB) TX bytes:78052 (78.0 KB)
Interrupt:16