npm和yarn国内镜像

npm

淘宝：

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

腾讯：

npm config set registry http://mirrors.cloud.tencent.com/npm/

恢复：

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

检查：

npm config list

yarn

淘宝：

yarn config set registry 'https://registry.npm.taobao.org'

腾讯：

yarn config set registry http://mirrors.cloud.tencent.com/npm/

恢复：

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

检查：

yarn config get registry