adb安装apk解决more than one device

wangdeMBP:android $ adb install /Users/xx/recorder/sample-totalBytes202101.apk 

error: more than one device/emulator

Performing Push Install

adb: error: failed to get feature set: more than one device/emulator

wangdeMBP:android $ adb devices

List of devices attached

a6839cb5 device

192.168.199.115:5555 device

192.168.199.241:5555 device

wangdeMBP:android $adb -s a6839cb5install/Users/xx/recorder/sample-totalBytes202101.apk 

Performing Streamed Install

Success

wangdeMBP:android $