Win10子系統 linux（Ubuntu18.04） 安裝Docker（一）
1.現在win10支援子系統linux，具體的安裝搭建過程可參照下面網址,不再冗餘
https://jingyan.baidu.com/article/624e74596633a034e8ba5a2b.html
//切換映象源
1）原檔案備份
sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak
2）編輯源列表檔案
sudo vim /etc/apt/sources.list
3）將原來的列表刪除，新增如下內容（中科大映象源）
deb http://mirrors.ustc.edu.cn/ubuntu/ xenial main restricted universe multiverse
deb
deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse
deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse
deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse
deb-src
deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-security main restricted universe multiverse
deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse
deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse
deb-src
4）執行sudo apt-get update
2.命令列執行：sudo systemctl start docker，結果會報錯
System has not been booted with systemd as init system (PID 1). Can’t operate.
經百度查詢：
https://askubuntu.com/questions/1049852/how-to-solve-system-has-not-been-booted-with-systemd-as-init-system-pid-1，
這個網址給有的人給出了正確的解決方案
複製出圈出的網址：https://blog.jayway.com/2017/04/19/running-docker-on-bash-on-windows/
直接訪問，按照如下的指令即可安裝docker成功，注意#是註釋，不要執行
# Install packages to allow apt to use a repository over HTTPS
$ sudo apt-get install apt-transport-https ca-certificates curl software-properties-common
# Add Docker's official GPG key
$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
# Set up the repository
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
# Update source lists
sudo apt-get update
# Install Docker
sudo apt-get install docker-ce
docker --version，能正確顯示版本號就是安裝成功了