你的jupyter也一直这样????
Connection failed：A connection to the notebook server could not be established. The notebook will continue trying to reconnect. Check your network connection or notebook server configuration.
那是因为你关了cmd
不要顺手关了cmd
不要顺手关了cmd
不要顺手关了cmd
????????
不要问我为什么知道
我不会告诉你我调了一天哦!