Vue3 启动项目失败error when starting dev server: Error: listen EACCES: permission denied 127.0.0.1:80

报错情况

error when starting dev server:
Error: listen EACCES: permission denied 127.0.0.1:80
    at Server.setupListenHandle [as _listen2] (node:net:1415:21)
    at listenInCluster (node:net:1480:12)
    at GetAddrInfoReqWrap.doListen [as callback] (node:net:1629:7)
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (node:dns:111:8)

启动项目加个端口（任意）

npm run dev -- --port 81

报错原因

文件package.json 端口80冲突

  "scripts": {
    
    
    "dev": "vite --port 80--open",   //端口80冲突
    "build": "vue-tsc && vite build",
    "preview": "vite preview"
  },