芝麻信用评估
芝麻信用评分是合法独立的信用评估及信用管理机构，授权后得到分数越高，代表信用越好
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pi@raspberrypi:/ $ apt-get install mosquitto
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?
请问这个什么问题
2017-07-26
