初始化一个新项目

    1. yarn init

    添加依赖包

    1. yarn add [package]
    2. yarn add [package]@[version]
    3. 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：

    1. yarn add [package] --dev
    2. yarn add [package] --peer
    3. yarn add [package] --optional

    升级依赖包

    1. yarn upgrade [package]
    2. yarn upgrade [package]@[version]
    3. yarn upgrade [package]@[tag]

    移除依赖包

    1. yarn remove [package]

    安装项目的全部依赖

    1. yarn

    或者

    1. yarn install