[root@FriendlyARM /]# ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 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:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
wlan0 Link encap:Ethernet HWaddr 00:21:27:B9:7C:47
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)
这是ifconfig 的结果，用友善的usb-wifi-kits时，scan-wifi 能探测到有多少个无线路由，但是前面会出现一堆显示结果，最后几行才是，那个什么“43%”这些东西
在start时，就没有网址，
sh: cannot kill pid 813: No such process
socket(PF_PACKET): Address family not supported by protocol
udhcpc (v1.13.3) started
udhcpc: socket: Address family not supported by protocol
这是最后几行，这到底是什么错误呢？
