之前试验多次未找到了解决方法，偶然看到其他大神的配置中有此问题的解决方法；

连接为https://blog.csdn.net/qq_37245336/article/details/81870609

1 参考地址

https://blog.csdn.net/hymanjack/article/details/80285400

https://blog.csdn.net/github_36498175/article/details/80161362

https://www.linuxidc.com/Linux/2018-04/152109.htm

2 gfortran gcc

g++切换(安装gamit需要切换低版本)

sudo apt-get install gcc-5

gcc-5-multilib

sudo apt-get install g++-5

g++-5-multilib

sudo apt-get install gcc-6

gcc-6-multilib

sudo apt-get install g++-6

g++-6-multilib

sudo apt-get install gcc-7

gcc-7-multilib

sudo apt-get install g++-7

g++-7-multilib

sudo apt-get install gfortran-5

gfortran-5-multilib

sudo apt-get install gfortran-6

gfortran-6-multilib

sudo apt-get install gfortran-7

gfortran-7-multilib

sudo update-alternatives --install

/usr/bin/gcc gcc /usr/bin/gcc-5 50

sudo update-alternatives --install

/usr/bin/gcc gcc /usr/bin/gcc-6 60

sudo update-alternatives --install

/usr/bin/gcc gcc /usr/bin/gcc-7 70

sudo update-alternatives --install

/usr/bin/g++ g++ /usr/bin/g++-5 50

sudo update-alternatives --install

/usr/bin/g++ g++ /usr/bin/g++-6 60

sudo update-alternatives --install

/usr/bin/g++ g++ /usr/bin/g++-7 70

sudo update-alternatives --install

/usr/bin/gfortran gfortran /usr/bin/gfortran-5 50

sudo update-alternatives --install

/usr/bin/gfortran gfortran /usr/bin/gfortran-6 60

sudo update-alternatives --install

/usr/bin/gfortran gfortran /usr/bin/gfortran-7 70

然后选择gcc和g++ gfortran

sudo update-alternatives --config

gcc

sudo update-alternatives --config

g++

sudo update-alternatives --config

gfortran

3 主题定制

主题

https://www.gnome-look.org/p/1167049/

https://www.gnome-look.org/p/1241688/

图标 papirus

sudo add-apt-repository

ppa:papirus/papirus

sudo apt update

sudo apt-get install

papirus-icon-theme

pop系列

sudo add-apt-repository

ppa:system76/pop

sudo apt-get update

sudo apt install pop-theme

扁平化系列

sudo add-apt-repository

ppa:daniruiz/flat-remix

sudo apt-get update

sudo apt-get install

flat-remix-gnome

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此文系转载，原文链接为https://blog.csdn.net/qq_37245336/article/details/81870609