WSL下的Ubuntu 18.04LTS配置軟件源和系統更新
設置系統語言為中文
# 安裝中文支持
sudo apt-get install -y language-pack-zh-hans
# 設置默認語言
sudo update-locale LANG=zh_CN.UTF-8
分別執行完上面的命令，關閉窗口，然后重新啟動Ubuntu即可切換為中文。
更換軟件源
1. 切換root用戶
sudo -i
2. 備份當前軟件源
mv /etc/apt/sources.list /etc/apt/sources.list.bak
3. 編輯軟件源管理文件
vim /etc/apt/sources.list
下面是阿里雲和網易雲的鏡像地址，任選其一粘貼至/etc/apt/sources.list保存退出即可
阿里雲軟件源：
deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic 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
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-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
網易軟件源：
deb http://mirrors.163.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-backports main restricted universe multiverse
4.更新軟件列表和系統軟件包
sudo apt-get update&& apt-get upgrade
至此，軟件源的配置結束，快下載個軟件試試你的網速有沒有飛起來吧
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