1、配置Typora-Ubuntu镜像源
wget -qO - https://typora.io/linux/public-key.asc | sudo apt-key add -
sudo add-apt-repository ‘deb https://typora.io/linux ./‘
2、更新
sudo apt-get update
3、下载安装
sudo apt-get install typora
原文：https://www.cnblogs.com/StefanieYang/p/13151442.html