在使用vi编辑器时，插入状态下，上下左右键失效变成ABCD。
系统为Ubuntu22.04.（建议先检查第五条apt源的问题）
解决方法:
1.尝试修复破损依赖（大概率解决不了）

sudo apt --fix-broken install

2.如果是报版本错误，尝试降级

sudo apt remove vim-common

安装系统提示的版本

sudo apt install vim-common=xxx vim

3.清理包管理器缓存
清除所有包缓存

sudo apt clean

仅删除过期不可用的软件包

sudo apt autoclean

4.重新安装

sudo apt update
sudo apt install vim

5.换源（如果还是不行，可能是镜像源出问题了）
备份：

sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak

换源（vi不正常，先使用nano）

sudo nano /etc/apt/sources.list

将原来的源注释或者删除，添加新的源

1. 阿里云镜像源
   Ubuntu 22.04 LTS (Jammy Jellyfish)
   deb http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
   deb http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
   deb http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse
   deb http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
   Ubuntu 20.04 LTS (Focal Fossa)
   arduino
   deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
   deb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
   deb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
   deb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
   Ubuntu 18.04 LTS (Bionic Beaver)
   arduino
   deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
   deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
   deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
   deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
2. 清华大学镜像源
   Ubuntu 22.04 LTS (Jammy Jellyfish)
   arduino
   deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiverse
   deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse
   deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse
   deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-security main restricted universe multiverse
   Ubuntu 20.04 LTS (Focal Fossa)
   arduino
   deb 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 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
   Ubuntu 18.04 LTS (Bionic Beaver)
   arduino
   deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
   deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
   deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
   deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
3. 中科大镜像源
   Ubuntu 22.04 LTS (Jammy Jellyfish)
   arduino
   deb https://mirrors.ustc.edu.cn/ubuntu/ jammy main restricted universe multiverse
   deb https://mirrors.ustc.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse
   deb https://mirrors.ustc.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse
   deb https://mirrors.ustc.edu.cn/ubuntu/ jammy-security main restricted universe multiverse
   Ubuntu 20.04 LTS (Focal Fossa)
   arduino
   deb https://mirrors.ustc.edu.cn/ubuntu/ focal main restricted universe multiverse
   deb https://mirrors.ustc.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
   deb https://mirrors.ustc.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
   deb https://mirrors.ustc.edu.cn/ubuntu/ focal-security main restricted universe multiverse
   Ubuntu 18.04 LTS (Bionic Beaver)
   arduino
   deb https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
   deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
   deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
   deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
4. 网易镜像源
   Ubuntu 22.04 LTS (Jammy Jellyfish)
   arduino
   deb http://mirrors.163.com/ubuntu/ jammy main restricted universe multiverse
   deb http://mirrors.163.com/ubuntu/ jammy-updates main restricted universe multiverse
   deb http://mirrors.163.com/ubuntu/ jammy-backports main restricted universe multiverse
   deb http://mirrors.163.com/ubuntu/ jammy-security main restricted universe multiverse
   Ubuntu 20.04 LTS (Focal Fossa)
   arduino
   deb http://mirrors.163.com/ubuntu/ focal main restricted universe multiverse
   deb http://mirrors.163.com/ubuntu/ focal-updates main restricted universe multiverse
   deb http://mirrors.163.com/ubuntu/ focal-backports main restricted universe multiverse
   deb http://mirrors.163.com/ubuntu/ focal-security main restricted universe multiverse
   Ubuntu 18.04 LTS (Bionic Beaver)
   arduino
   deb http://mirrors.163.com/ubuntu/ bionic main restricted universe multiverse
   deb http://mirrors.163.com/ubuntu/ bionic-updates main restricted universe multiverse
   deb http://mirrors.163.com/ubuntu/ bionic-backports main restricted universe multiverse
   deb http://mirrors.163.com/ubuntu/ bionic-security main restricted universe multiverse
5. 官方 Ubuntu 镜像源
   如果你想使用 Ubuntu 官方的全球镜像，可以使用以下源：
   Ubuntu 22.04 LTS (Jammy Jellyfish)
   arduino
   deb http://archive.ubuntu.com/ubuntu/ jammy main restricted universe multiverse
   deb http://archive.ubuntu.com/ubuntu/ jammy-updates main restricted universe multiverse
   deb http://archive.ubuntu.com/ubuntu/ jammy-backports main restricted universe multiverse
   deb http://archive.ubuntu.com/ubuntu/ jammy-security main restricted universe multiverse
   Ubuntu 20.04 LTS (Focal Fossa)
   arduino
   deb http://archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse
   deb http://archive.ubuntu.com/ubuntu/ focal-updates main restricted universe multiverse
   deb http://archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse
   deb http://archive.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse