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ubuntu安裝gcc

1、首先備份Ubuntu源列表:sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup

2、開啟更新源列表:sudo gedit /etc/apt/sources.list

3、修改源列表。 
中國科技大學的源一般使用起來比較快,直接選擇中科大的源。 
刪除source.list檔案中的源,將下面的直接複製過去:

# USTC (University of Science and Technology of Thina)

# xenial is ubuntu 16.04 version

deb http://mirrors.ustc.edu.cn/ubuntu/ xenial main restricted universe multiverse

deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-security main restricted universe multiverse

deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse

deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse

deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse

deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial main restricted universe multiverse

deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-security main restricted universe multiverse

deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse

deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse

deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse

4、更新源。 
sudo apt-get update

5、安裝:

sudo apt-get install build-essential