jupyter notebook运行不了指令，一直出现ln[*]，python后面是一个实心圆

小白求助一下各位！ 我在打开jupyter notebook之后，运行指令一直出现ln[*]，python后面是一个实心圆。cmd出现了一下代码，请问是出现了什么问题呢？

[I 15:52:03.819 NotebookApp] The port 8888 is already in use, trying another port.
[I 15:52:03.863 NotebookApp] JupyterLab extension loaded from C:\Users\E7\Anaconda3\lib\site-packages\jupyterlab
[I 15:52:03.863 NotebookApp] JupyterLab application directory is C:\Users\E7\Anaconda3\share\jupyter\lab
[I 15:52:03.863 NotebookApp] Serving notebooks from local directory: C:\Users\E7
[I 15:52:03.863 NotebookApp] The Jupyter Notebook is running at:
[I 15:52:03.863 NotebookApp] http://localhost:8889/?token=54469b1e99c492de5d39e322ca65f5c57894e99820bf3e5b
[I 15:52:03.863 NotebookApp]  or http://127.0.0.1:8889/?token=54469b1e99c492de5d39e322ca65f5c57894e99820bf3e5b
[I 15:52:03.863 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 15:52:03.946 NotebookApp]

    To access the notebook, open this file in a browser:
        file:///C:/Users/E7/AppData/Roaming/jupyter/runtime/nbserver-7824-open.html
    Or copy and paste one of these URLs:
        http://localhost:8889/?token=54469b1e99c492de5d39e322ca65f5c57894e99820bf3e5b
     or http://127.0.0.1:8889/?token=54469b1e99c492de5d39e322ca65f5c57894e99820bf3e5b
[E 15:52:05.877 NotebookApp] Could not open static file ''
[W 15:52:05.943 NotebookApp] 404 GET /static/components/react/react-dom.production.min.js (::1) 10.99ms referer=http://localhost:8889/tree?token=54469b1e99c492de5d39e322ca65f5c57894e99820bf3e5b
[I 15:52:08.516 NotebookApp] Creating new notebook in
[W 15:52:09.002 NotebookApp] 404 GET /static/components/react/react-dom.production.min.js (::1) 5.00ms referer=http://localhost:8889/notebooks/Untitled1.ipynb?kernel_name=python3
[W 15:52:09.076 NotebookApp] 404 GET /static/components/react/react-dom.production.min.js (::1) 2.01ms referer=http://localhost:8889/notebooks/Untitled1.ipynb?kernel_name=python3
[I 15:52:09.384 NotebookApp] Kernel started: 6db1ab16-89ac-478d-9f34-9afa663163e5
[I 15:52:10.480 NotebookApp] Adapting from protocol version 5.1 (kernel 6db1ab16-89ac-478d-9f34-9afa663163e5) to 5.3 (client).
[I 15:52:10.494 NotebookApp] Starting buffering for 6db1ab16-89ac-478d-9f34-9afa663163e5:f514da92dd2a40c3862e22f5ad9f0bf4
[I 15:52:11.493 NotebookApp] Adapting from protocol version 5.1 (kernel 6db1ab16-89ac-478d-9f34-9afa663163e5) to 5.3 (client).
[I 15:52:11.494 NotebookApp] Restoring connection for 6db1ab16-89ac-478d-9f34-9afa663163e5:f514da92dd2a40c3862e22f5ad9f0bf4
[I 15:52:11.496 NotebookApp] Starting buffering for 6db1ab16-89ac-478d-9f34-9afa663163e5:f514da92dd2a40c3862e22f5ad9f0bf4
[I 15:52:12.508 NotebookApp] Adapting from protocol version 5.1 (kernel 6db1ab16-89ac-478d-9f34-9afa663163e5) to 5.3 (client).
[I 15:52:12.508 NotebookApp] Restoring connection for 6db1ab16-89ac-478d-9f34-9afa663163e5:f514da92dd2a40c3862e22f5ad9f0bf4
[I 15:52:29.383 NotebookApp] Starting buffering for 6db1ab16-89ac-478d-9f34-9afa663163e5:f514da92dd2a40c3862e22f5ad9f0bf4

这是我这边正常访问的情况，我是想先看下你那是不是连不上服务还是怎么的

求求大家帮帮我，整了两天了重新下载了好多次，但还是不行。

conda update jupyter 

 一下

先打开开发者工具看下有没有报什么错

题主问题解决了吗？我也遇到了相同情况...

题主问题解决了吗