官方教程https://learn.microsoft.com/zh-cn/windows/wsl/tutorials/gui-apps

假设你的情况是已经安装好Ubuntu20.04的发行版

更换源

1. 首先备份原有配置文件sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak

2. 之后编辑文件sudo vi /etc/apt/sources.list

3. 按ESC键，输入命令即可清空所有内容:%d

4. 按i，将以下内容复制进去

# 清华镜像
# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse

# 预发布软件源，不建议启用
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse

# 阿里云镜像
deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse

最后输入sudo apt update和sudo apt upgrade看到地址变成更改的就换源成功了

安装文本编辑器

官方建议安装Gnome 文本编辑器sudo apt install gnome-text-editor -y，但是不知道为什么下载不到，所以换成gedit sudo apt install gedit -y

安装光栅图形编辑器

sudo apt install gimp -y

安装桌面文件管理器

sudo apt install nautilus -y

启动命令nautilus

安装媒体播放器

sudo apt install vlc -y

安装x11图形应用包

sudo apt install x11-apps -y

包含了时钟计算器等工具，比较特殊的是应用可以作为windows的应用进行切换

启动命令包括xcalc、xclock、xeyes等