import { createApp } from 'vue'
import element from 'element-plus'
import '@/assets/css/index.css'
import router from '@/router/index'
import App from './App'
import { createPinia } from 'pinia'
const app = createApp(App)
app.use(element).use(router).use(createPinia()).mount('#root')

import { defineStore } from 'pinia'
export const userStore = defineStore('user', {
  state: _ => {
    return {
      username: '張同學(xué)'
    }
  },
  getters: {
  },
  actions: {
    // 重置數(shù)據(jù)
    _reset() {
      this.$reset()
    }
  }
})

<template>
  <div>
    姓名：{{ user_store.username }}
    <br />
    <el-button @click="change_username">修改名稱</el-button>
    <el-button @click="user_store._reset()">重置</el-button>
  </div>
</template>
<script>
import { userStore } from '../store/user'
export default {
  setup() {
    let user_store = userStore() // 初始化 user_store
    
    return { user_store }
  }
}
</script>

let user_store = userStore()
/**
 * @description 修改用戶名稱
 */
let update = _ => {
  user_store.username = '張三'
}

let user_store = userStore()
/**
 * @description 修改用戶名稱
 */
let update = _ => {
  user_store.$patch({
  	username: '張三' 
  })
}

let user_store = userStore()
/**
 * @description 修改用戶名稱
 */
let update = _ => {
  user_store.$patch(state => {
    state.username = '張三'
  })
}

let user_store = userStore()
/**
 * @description 修改用戶名稱
 */
let update = _ => {
  user_store.update_username('張三')
}
// 修改用戶名稱
update_username(value) {
  this.username = value
}