http://blog.csdn.net/lano2088/article/details/51985563
https://www.cnblogs.com/pied/p/4175641.html
http://pyserial.readthedocs.io/en/latest/pyserial.html
http://blog.csdn.net/xiufu004/article/details/7198259
https://en.wikipedia.org/wiki/ANSI_escape_code#graphics