新项目初始化
yarn init
添加依赖包
yarn add [package] yarn add [package]@[version] yarn add [package]@[tag]
将依赖项添加到不同依赖项类别中
分别添加到 devDependencies、peerDependencies 和 optionalDependencies 类别中：
yarn add [package] --dev yarn add [package] --peer yarn add [package] --optional
升级依赖包
yarn upgrade [package] yarn upgrade [package]@[version] yarn upgrade [package]@[tag]
移除依赖包
yarn remove [package]
安装项目的全部依赖
yarn install
