方法一

options(repos=structure(

c(CRAN="https://mirrors.tuna.tsinghua.edu.cn/CRAN/")))

install.packages(

"包名")

 

方法二

install.packages

(

"ABC"

,repos=

"http://mirror.bjtu.edu.cn/ "

)

## 换成北大镜像

 

 

国内其他镜像

China

https://mirrors.tuna.tsinghua.edu.cn/CRAN/     TUNA Team, Tsinghua University

http://mirrors.tuna.tsinghua.edu.cn/CRAN/       TUNA Team, Tsinghua University

https://mirrors.ustc.edu.cn/CRAN/                     University of Science and Technology of China

http://mirrors.ustc.edu.cn/CRAN/                       University of Science and Technology of China

https://mirror-hk.koddos.net/CRAN/                   KoDDoS in Hong Kong

https://mirrors.eliteu.cn/CRAN/                          Elite Education

https://mirror.lzu.edu.cn/CRAN/                         Lanzhou University Open Source Society

http://mirror.lzu.edu.cn/CRAN/                           Lanzhou University Open Source Society

https://mirrors.tongji.edu.cn/CRAN/                  Tongji University

https://mirrors.shu.edu.cn/CRAN/                     Shanghai University

查找镜像地址