标签：dev number update 错误 dex date class install pen
sudo apt-get updatesudo apt-get upgradesudo apt-get install python-opencvsudo apt-get install python-pipsudo apt-get install python-devsudo pip install picamera标签：dev number update 错误 dex date class install pen
原文地址：http://www.cnblogs.com/wuxuan/p/7470017.html
