在Nodejs环境下，通过npm install -g yarn 命令进行全局安装
例如：
yarn version yarn init yarn install yarn add vue yarn add vue-router yarn remove vue-router CLI 命令比较
npm Yarn npm install yarn install (N/A) yarn install --flat (N/A) yarn install --har (N/A) yarn install --no-lockfile (N/A) yarn install --pure-lockfile npm install [package] (N/A) npm install --save [package] yarn add [package] npm install --save-dev [package] yarn add [package] [--dev/-D] (N/A) yarn add [package] [--peer/-P] npm install --save-optional [package] yarn add [package] [--optional/-O] npm install --save-exact [package] yarn add [package] [--exact/-E] (N/A) yarn add [package] [--tilde/-T] npm install --global [package] yarn global add [package] npm rebuild yarn install --force npm uninstall [package] (N/A) npm uninstall --save [package] yarn remove [package] npm uninstall --save-dev [package] yarn remove [package] npm uninstall --save-optional [package] yarn remove [package] npm cache clean yarn cache clean rm -rf node_modules && npm install yarn upgrade
typescript 声明文件管理工具 https://www.cnblogs.com/dhcn/p/7722248.html typings 安装 npm install typings -g 安装依赖库如： ypings install dt~async --global