命令大多和npm相同
npm install -g yarn
yarn --version
yarn install
yarn add axios # 下载单个依赖
yarn cache clean
yarn cache clean particular_package_name
yarn cache list # print out every cached package
yarn config get prefix
yarn config get registry
yarn config set registry https://registry.npm.taobao.org/
yarn config delete cache # 删除自己刚配置的cache设置
yarn config delete registry # 删除自己刚配置的registry设置
npm config delete registry # 删除自己刚配置的registry设置
# 在仓库中 搜索与关键字匹配的包
# 对仓库中所有文件的包元数据执行线性、增量、词法排序搜索。
npm search 关键字 --registry=http://registry.npmjs.org