实时日志查看

参考:  http://www.ttlsa.com/python/monitor-log-realtime-python-websocket/

　　http://www.cnblogs.com/xiaoyou2018/archive/2018/07/18/9328950.html

　　https://blog.csdn.net/devilcry13/article/details/81702147

　　https://blog.csdn.net/s740556472/article/details/78991704

　　https://www.cnblogs.com/shihaiming/p/6201678.html