（来源 https://blog.csdn.net/xiaoxiao_yingzi/article/details/93735991）
#备份文件
sudo mv /var/lib/apt/lists./lists.bak
#创建新的lists
sudo mkdir /var/lib/apt/lists
#更改源
更改源：
vim/etc/apt/sources.list 将下面的源添加进去：
debhttp://mirrors.aliyun.com/debianwheezy main contrib non-free
deb-srchttp://mirrors.aliyun.com/debianwheezy main contrib non-free
debhttp://mirrors.aliyun.com/debianwheezy-updates main contrib non-free
deb-srchttp://mirrors.aliyun.com/debianwheezy-updates main contrib non-free
debhttp://mirrors.aliyun.com/debian-security wheezy/updates main contrib non-free
deb-srchttp://mirrors.aliyun.com/debian-security wheezy/updates main contrib non-free
#强制保存
:w !sudo tee %
sudo apt-get update
#依然报错更改
vim /etc/resolv.conf
添加： nameserver8.8.8.8
