异常信息如下：
C:\Users\Administrator>adb devices
* daemon not running. starting it now on port 5037 *
ADB server didn‘t ACK
* failed to start daemon *
error: cannot connect to daemon
解决方案：
netstat -aon|findstr "5037"
tasklist /fi "pid eq 8944
原文：http://www.cnblogs.com/ITGirl00/p/4234499.html