ubuntu 20 安装mysql workbench 过程，参考网站为/kb/mysql-workbench-ubuntu
步骤1：sudo apt update && sudo apt upgrade
步骤2：下载mysql-apt-config_0.8.23-1_all.deb
步骤3：安装 sudo apt install ./mysql-apt-config_0.8.23-1_all.deb
步骤4：点击OK
步骤5：sudo apt update
步骤6：sudo apt install mysql-workbench-community
步骤7：启动mysql-workbench mysql-workbench
卸载mysql-workbench 命令为sudo apt remove mysql-workbench
