pinia-example/src/main.ts

import { createApp } from 'vue'
import App from './App.vue'
import { createPinia } from "pinia";
import piniaPersist from 'pinia-plugin-persist'

// 1. 实例化pinia
const pinia = createPinia()
pinia.use(piniaPersist)

const app = createApp(App)

// 2. 挂载pinia
app.use(pinia)

app.mount('#app')