main.js

import App from './App'
import store from './store'

// #ifndef VUE3
import Vue from 'vue'
Vue.config.productionTip = false
Vue.prototype.$store = store
App.mpType = 'app'
const app = new Vue({
  store,
  ...App
})
app.$mount()
// #endif

// #ifdef VUE3
import { createApp } from 'vue'
const app = createApp(App,{})
app.use(store)
app.mount('#app')
// #endif