安装Pillow失败，无libjpeg包

安装pillow遇到报错

The headers or library files could not be found for jpeg,
      a required dependency when compiling Pillow from source.
      
      Please see the install instructions at:
         https://pillow.readthedocs.io/en/latest/installation/basic-installation.html

网上说要安装 libjpeg

sudo apt-get update
sudo apt-get install libjpeg-dev zlib1g-dev

但我没有sudo权限，遂选择conda安装（安装第一个即可）

conda install -c conda-forge libjpeg-turbo

再次安装Pillow时，遇见gcc相关报错，升级gcc

conda install -c conda-forge gcc_linux-64 gxx_linux-64

再次安装Pillow则成功