//tcpdump工具使用:http://blog.csdn.net/shuzui1985/article/details/7768840
//adb控台中Permission denied的解决方案 :http://blog.csdn.net/wkl305268748/article/details/13504171
//出現Android adb opendir failed ,permission denied :http://www.cnblogs.com/ansonz/p/3227228.html
//命令抓封包
/data/local/tcpdump -p -vv -s 0 -w/sdcard/capture.pcap
//抓到桌面
adb pull /sdcard/capture.pcap /Users/brent1148/Desktop
