报错信息:
PS D:\disk\xubo\个人博客文章\27-Vue\资料（含课件）\vuedemo\vueproject> npm i pubsub-js
npm ERR! code EPERM
npm ERR! syscall open
npm ERR! path D:\disk\soft\node.js\node_cache_cacache\index-v5\1d\32\0400202fc22af03ff2926f006e455fe92c77b8136b8fbebbad5eee83f240
npm ERR! Error: EPERM: operation not permitted, open 'D:\disk\soft\node.js\node_cache_cacache\index-v5\1d\32\0400202fc22af03ff2926f006e455fe92c77b8136b8fbebbad5eee83f240'
npm ERR! [Error: EPERM: operation not permitted, open 'D:\disk\soft\node.js\node_cache_cacache\index-v5\1d\32\0400202fc22af03ff2926f006e455fe92c77b8136b8fbebbad5eee83f240'] {
npm ERR! errno: -4048,
npm ERR! code: 'EPERM',
npm ERR! syscall: 'open',
npm ERR! path: 'D:\disk\soft\node.js\node_cache\_cacache\index-v5\1d\32\0400202fc22af03ff2926f006e455fe92c77b8136b8fbebbad5eee83f240',
npm ERR! requiredBy: '.'
npm ERR! }
npm ERR!
npm ERR! The operation was rejected by your operating system.
npm ERR! It's possible that the file was already in use (by a text editor or antivirus),
npm ERR! or that you lack permissions to access it.
npm ERR!
npm ERR! If you believe this might be a permissions issue, please double-check the
npm ERR! permissions of the file and its containing directories, or try running
npm ERR! the command again as root/Administrator.
npm ERR! Log files were not written due to an error writing to the directory: D:\disk\soft\node.js\node_cache_logs
npm ERR! You can rerun the command with --loglevel=verbose to see the logs in your terminal
问题原因:没有权限打开这个目录->operation not permitted, open 'D:\disk\soft\node.js\node_cache_cacache
没有管理员权限，无法在node_global和node_cache两个文件夹下进行一些必要的操作
解决方式:
方式一:
删除用户下的.npmrc文件，即不改变全局安装的路径（不够好，本质问题仍没有解决，全局还是会安装在C盘）
每次都用管理员身份运行命令行（不够方便，vscode 下的命令行默认也不是管理员身份运行的）
方式二:
直接修改node_global和node_cache文件夹的权限：
右键文件夹，打开属性，切换到安全选项卡
