設置Ubuntu、apt-get以及pip國內鏡像源

ubuntu是用過程中下載各種軟件或者依賴包必不可免，使用國內鏡像可以大大提高使用效率。
比較好的鏡像源首推阿里鏡像源

1.設置Ubuntu軟件中心國內阿里鏡像源

2.設置apt-get國內阿里鏡像源

sudo mv /etc/apt/sources.list /etc/apt/sources.list.bak
sudo nano /etc/apt/sources.list

# 默認註釋了源碼倉庫，如有需要可自行取消註釋
deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
# deb-src https://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
# deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
# deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
# deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse

# 預發佈軟件源，不建議啓用
# deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
# deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse

sudo apt-get update
sudo apt-get upgrade

3.設置pip國內阿里鏡像源

vi ~/.pip/pip.conf
[global]
index-url = https://mirrors.aliyun.com/pypi/simple
trusted-host =  mirrors.aliyun.com