麻的法克，终于找到adb device not found的解决方法了

1) On your Windows desktop, Go to your Control Panel then Device Manager.
2) You should see Android Phone under Other Devices with a Yellow ! mark on it.
3) Right click on it and choose "Update Driver Software"
4) Choose "Browse my computer", then "Let me pick from a list."
5) If you see categories, select "Android Device", then select "Android ADB Interface".
6) The driver will install and you can now run the update with ADB.