如何在jupyter notebook使用conda已有的虚拟环境

• 首先conda里已经配置好的环境，使用conda env list

(torch) D:\MyData\xiazw8.CN\Desktop\Python\Python+\Python_base\tensorboard>conda env list
base                     D:\MyData\x8.CN\Anaconda3
detectron2               D:\MyData\x8.CN\Anaconda3\envs\detectron2
ssl                      D:\MyData\x8.CN\Anaconda3\envs\ssl
torch                 *  D:\MyData\x8.CN\Anaconda3\envs\torch

• 激活想在jupyter notebook中使用的虚拟环境，比如说torch

D:\MyData\x8.CN\Desktop\Python\Python+\Python_base\tensorboard>conda activate torch
(torch) D:\MyData\x8.CN\Desktop\Python\Python+\Python_base\tensorboard>

• 在虚拟环境torch中安装ipykernel

pip install ipykernel
conda install ipykernel
# 两条命令都行

(torch) D:\MyData\x8.CN\Desktop\Python\2-classes>pip install ipykernel
Looking in indexes: https: