wsl关机后再打开miniconda 就能用了：

bash
wsl --shutdown

重启：

bash
wsl -d Ubuntu-18.04

WSL莫名其妙断网的解决办法：

bash
sudo rm /etc/resolv.conf
sudo bash -c 'echo "nameserver 8.8.8.8" > /etc/resolv.conf'
sudo bash -c 'echo "[network]" > /etc/wsl.conf'
sudo bash -c 'echo "generateResolvConf = false" >> /etc/wsl.conf'