记录一下自己vue出现的问题和解决方法：
PS D:\vscode\shop> npm install
npm WARN deprecated babel-eslint@10.1.0: babel-eslint is now @babel/eslint-parser. This package will no longer receive updates.
npm WARN deprecated eslint-loader@2.2.1: This loader has been deprecated. Please use eslint-webpack-plugin
npm WARN deprecated html-webpack-plugin@3.2.0: 3.x is no longer supported
npm WARN deprecated @hapi/joi@15.1.1: Switch to ‘npm install joi’
npm WARN deprecated request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
npm WARN deprecated chokidar@2.1.8: Chokidar 2 will break on node v14+. Upgrade to chokidar 3 with 15x less dependencies.
npm WARN deprecated @hapi/bourne@1.3.2: This version has been deprecated and is no longer supported or maintained
npm WARN deprecated @hapi/hoek@8.5.1: This version has been deprecated and is no longer supported or maintained
npm WARN deprecated @hapi/topo@3.1.6: This version has been deprecated and is no longer supported or maintained
npm WARN deprecated @hapi/address@2.1.4: Moved to ‘npm install @sideway/address’
npm WARN deprecated har-validator@5.1.5: this library is no longer supported
npm WARN deprecated fsevents@1.2.13: fsevents 1 will break on node v14+ and could be using insecure binaries. Upgrade to fsevents 2.
npm WARN deprecated core-js@2.6.12: core-js@❤️ is no longer maintained and not recommended for usage due to the number of issues. Please, upgrade your dependencies to the actual version of core-js@3.
npm WARN deprecated resolve-url@0.2.1: https://github.com/lydell/resolve-url#deprecated
npm WARN deprecated urix@0.1.0: Please see https://github.com/lydell/urix#deprecated

yorkie@2.0.0 install D:\vscode\shop\node_modules\yorkie
node bin/install.js

setting up Git hooks
can’t find .git directory, skipping Git hooks installation

core-js@2.6.12 postinstall D:\vscode\shop\node_modules\babel-runtime\node_modules\core-js
node -e “try{require(’./postinstall’)}catch(e){}”

Thank you for using core-js ( https://github.com/zloirock/core-js ) for polyfilling JavaScript standard library!

The project needs your help! Please consider supporting of core-js on Open Collective or Patreon:

https://opencollective.com/core-js
https://www.patreon.com/zloirock

Also, the author of core-js ( https://github.com/zloirock ) is looking for a good job -)

core-js@3.9.1 postinstall D:\vscode\shop\node_modules\core-js
node -e “try{require(’./postinstall’)}catch(e){}”

解决办法：1.在命令行输入：npm fund ；
2.在输入：npm run dev
3.最后：npm install --no-fund