从地址https://classic.yarnpkg.com/zh-Hans/docs/install#windows-stable下载或通过命令安装
yarn config set global-folder "D:\Program Files (x86)\Yarn\global"
yarn config set cache-folder "D:\Program Files (x86)\Yarn\cache"三
yarn global bin
yarn global dir
原文：https://www.cnblogs.com/zzxulong/p/12772953.html