前言

Ubuntu16安装caffe过于繁琐，然而Ubuntu18安装起来却仅仅两步而已
附上官方安装教程：http://caffe.berkeleyvision.org/install_apt.html

安装方法

1、众所周知，访问国外网时很慢很慢，所以首先需要换源，这里建议使用中科大的源，因为用国内其他源可能无法检测到Caffe。（这里坑了我好久）

cp /etc/apt/sources.list /etc/apt/sources_init.list

gedit /etc/apt/sources.list

将弹出的文本全部改成

deb https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse

2、执行更新

sudo apt-get update
sudo apt-get upgrade

3、安装Caffe

sudo apt install caffe-cpu

如果想安装gpu版，则将-cpu改成-cuda即可
4、编译

sudo apt build-dep caffe-cpu

同样，gpu版需自行更改为-cuda
5、最后验证下是否成功即可