anchor.diff:  RUN apt-get install -y vim gradle
   
   # Clean up
  +RUN apt-get remove -y curl
   RUN apt-get clean
   RUN apt-get purge
   
  
positive.code:     chown ${uid}:${gid} -R /home/developer
  
  # Set up USB device debugging (device is ID in the rules files)
  ADD 51-android.rules /etc/udev/rules.d
  RUN chmod a+r /etc/udev/rules.d/51-android.rules
  
  USER developer
  
  # 处理中文问题
  ENV LANG=C.UTF-8
  ENV HOME /home/developer
  CMD /opt/android-studio/bin/studio.sh
  
negative.code: FROM ubuntu:14.04
  
  RUN apt-get update
  
  