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卸载npm和安装npm
To uninstall a package you have previously installed locally (using npm install <package-name> in the node_modules folder, run
要卸载以前在本地 npm install <package-name> (使用node_modules文件夹中的npm install <package-name> ，请运行
npm uninstall <package-name>from the project root folder (the folder that contains the node_modules folder).
从项目根文件夹(包含node_modules文件夹的文件夹)中。
Using the -S flag, or --save, this operation will also remove the reference in the package.json file.
使用-S标志或--save ，此操作还将删除package.json文件中的引用。
If the package was a development dependency, listed in the devDependencies of the package.json file, you must use the -D / --save-dev flag to remove it from the file:
如果程序包是在package.json文件的devDependencies中列出的开发依赖关系，则必须使用-D / --save-dev标志将其从文件中删除：
npm uninstall -S <package-name>
npm uninstall -D <package-name>If the package is installed globally, you need to add the -g / --global flag:
如果软件包是全局安装的，则需要添加-g / --global标志：
npm uninstall -g <package-name>for example:
例如：
npm uninstall -g webpackand you can run this command from anywhere you want on your system because the folder where you currently are does not matter.
并且您可以在系统上的任何位置运行此命令，因为当前所在的文件夹无关紧要。
卸载npm和安装npm
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