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su -
 
vi /etc/apt/sources.list
# 默认注释了源码仓库，如有需要可自行取消注释
deb http://mirrors.ustc.edu.cn/debian trixie main contrib non-free non-free-firmware
# deb-src http://mirrors.ustc.edu.cn/debian trixie main contrib non-free non-free-firmware
deb http://mirrors.ustc.edu.cn/debian trixie-updates main contrib non-free non-free-firmware
# deb-src http://mirrors.ustc.edu.cn/debian trixie-updates main contrib non-free non-free-firmware
 
# backports 软件源，请按需启用
# deb http://mirrors.ustc.edu.cn/debian trixie-backports main contrib non-free non-free-firmware
# deb-src http://mirrors.ustc.edu.cn/debian trixie-backports main contrib non-free non-free-firmware
 
apt update
apt upgrade
apt install vim
update-alternatives --config editor   #默认编辑器是nano我喜欢vim选择/usr/bin/vim.basic
apt install locales
dpkg-reconfigure locales    //修改默认语言
apt install sudo
 
visudo 
exit