创建项目步骤
概览：
在安装 npm安装时会报错
npm ERR! code ERESOLVE
npm ERR! ERESOLVE could not resolve
npm ERR!
npm ERR! While resolving: @vue/eslint-config-standard@6.1.0
npm ERR! Found: eslint-plugin-vue@8.7.1
npm ERR! node_modules/eslint-plugin-vue
npm ERR! dev eslint-plugin-vue@"^8.0.3" from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer eslint-plugin-vue@"^7.0.0" from @vue/eslint-config-standard@6.1.0
npm ERR! node_modules/@vue/eslint-config-standard
npm ERR! dev @vue/eslint-config-standard@"^6.1.0" from the root project
npm ERR!
npm ERR! Conflicting peer dependency: eslint-plugin-vue@7.20.0
npm ERR! node_modules/eslint-plugin-vue
npm ERR! peer eslint-plugin-vue@"^7.0.0" from @vue/eslint-config-standard@6.1.0
npm ERR! node_modules/@vue/eslint-config-standard
npm ERR! dev @vue/eslint-config-standard@"^6.1.0" from the root project
npm ERR!
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
依赖冲突原因：
@vue/eslint-config-standard@6.1.0 依赖于 eslint-plugin-vue 的 ^7.0.0 版本，但是项目中安装了更高版本的eslint-plugin-vue
解决方式：降级eslint-plugin-vue到@vue/eslint-config-standard支持的版本
npm install eslint-plugin-vue@^7.0.0
解决后：
再进行npm安装，就能成功
npm i --registry https://registry.npmmirror.com vant@latest-v2 -S
