没有看到对我有用的答案，所以它是:在我的OSX系统上，我在~/.yarn/bin/yarn找到了yarn。Rm -rf ~/。纱处理了它。

试试这个，它在macOS上运行良好:

$ brew uninstall --force yarn
$ npm uninstall -g yarn
$ yarn -v

V0.24.5(或当前版本)

$ which yarn

/usr/local/bin/yarn

$ rm -rf /usr/local/bin/yarn
$ rm -rf /usr/local/bin/yarnpkg
$ which yarn

找不到纱线

$ brew install yarn 
$ brew link yarn
$ yarn -v

V1.17.3(最新版本)

或者你可以在网站(https://classic.yarnpkg.com/lang/en/docs/install/#mac-stable)上通过npm安装它，使用:

$ npm install --global yarn

这是如何为Mac用户完全卸载yarn

sudo npm uninstall -g yarn

只要复制这个命令，您的问题就会得到解决。

NPM脱纱

Windows:

我需要做这些步骤，以完全去除纱线从系统。

Go to add or remove programs and then search for yarn and uninstall it(if you installed it with the .msi) npm uninstall -g yarn (if you installed with npm) Remove any existing yarn folders from your Program Files (x86) (Program Files (x86)\Yarn). Also need to delete your Appdata\local\yarn folder ( type %LOCALAPPDATA% in the run dialog box (win+R), it opens a local folder and there you'll find the yarn folder to delete) Finally,check your user directory and remove all .yarn folder, .yarn.lock file, .yarnrc etc ( from C:\Users\<user>\)

删除线

# macOS & brew
$ brew uninstall yarn

移除NPM包

# yarn global remove
$ sudo yarn global remove @tarojs/cli


# yarn global add 
$ sudo yarn global add @tarojs/cli

参考文献:

https://classic.yarnpkg.com/en/docs/cli/global/

https://classic.yarnpkg.com/en/docs/cli/remove/