安装 pinia-plugin-persistedstate

npm i pinia-plugin-persistedstate

main.ts

import App from './App.vue'
import { createPersistedState } from 'pinia-plugin-persistedstate'
import { createPinia } from 'pinia'

const pinia = createPinia()
pinia.use(createPersistedState())
const app = createApp(App)
app.use(pinia)
app.mount('#app')

store.ts

export const useRobotStore = defineStore('robot', () => {
    ...
}, {
  persist: true
})