添加华为源的正确方法：
sudo cp /etc/apt/source.list /etc/apt/source.list.original
vim /etc/apt/source.list
添加下面的代码：
### 华为源：
deb [trusted=yes] https://mirrors.huaweicloud.com/deepin stable main contrib non-free
#deb-src deb https://mirrors.huaweicloud.com/deepin stable main
然后sudo apt update
