安装tensorflow虚拟环境
conda create -n tf2-2 python=3.7
conda activate tf2-2
pip install tensorflow==2.2.0
pip install keras==2.3.1
安装tensorflow虚拟环境
conda create -n tf2-2 python=3.7
conda activate tf2-2
pip install tensorflow==2.2.0
pip install keras==2.3.1