1.升级yarn版本Yarn版本升级运行如下命令升级Yarn：1：确保安装了Homebrew$brewupgradeyarn2：下载官方脚本升级（这个好用）$curl-o--Lhttps://yarnpkg.com/install.sh|庆典2。基本使用方法初始化一个新项目yarninitadddependencypackageyarnadd[package]yarnadd[package]@[version]yarnadd[package]@[tag]将依赖添加到不同的依赖类中，添加到devDependencies,peerDependencies和optionalDependencies分别为：yarnadd[package]--devyarnadd[package]--peeryarnadd[package]--optionalupgradedependencypackageyarnupgrade[package]yarnupgrade[package]@[version]yarnupgrade[package]@[tag]移除依赖包yarnremove[package]install项目yarn//或yarninstall3的所有依赖。全局安装yarnglobaladdnodemon4。修改source查看源码Yarnconfiggetregistry改为淘宝源https://sebastianblade.com/th...yarnconfigsetregistryhttps://registry.npm.taobao.org改为官方源yarnconfig设置注册表https://registry.npmjs.org/
