切换npm和yarn的源为镜像源

切换npm源为镜像源：

npm config set registry https://registry.npmmirror.com

 

切换yarn源为镜像源：

yarn config set registry https://registry.npmmirror.com

 

切换npm源为默认源：

npm config set registry https://registry.npmjs.org/

 

切换yarn源为默认源：

yarn config set registry https://registry.yarnpkg.com

 

查看npm源：

npm config get registry

 

查看yarn源：

yarn config get registry