首先在base下安装ipykernel

conda install ipykernel

在虚拟环境下安装ipykernel

conda install -n tensorflow ipykernel

激活conda环境并将环境写入jupyter

python -m ipykernel install --user --name tensorflow --display-name "tensorflow"

可以在创建虚拟环境时便安装ipykernel

conda create -n tensorflow python=3.6 ipykernel

删除kernel环境

jupyter kernelspec remove tensorflow