vue3中使用pinia

npm install pinia

import { createPinia } from 'pinia'
const pinia = createPinia();
app.use(pinia);

import test from "./test"

export default function useStore() {
    return {
        TestStore: test(),
    };
}

import { defineStore } from "pinia";
// 用户的类型声明文件
const test = defineStore("test", {
    state() {
        return {
            userName: '甲庚农七一一',
        };
    },
    getters: {
        getUserName(state) {
            return state.userName.split("").reverse().join("");
        }
    },
    actions: {
        setCount(data: string) {
          this.userName = data.split("").reverse().join("")
        }
    }
});
export default test

<template>
    <div>{{ TestStore.userName }}</div>
    <input type="text" v-model="state.nameValue">
    <button @click="nameChange">确定</button>
</template>
<script setup lang="ts">
import {reactive} from 'vue'
import useStore from "@/store";
const { TestStore } = useStore();


const state = reactive({
   title: 'hahaha',
   nameValue: ''
})
const nameChange = ()=>{
    TestStore.setCount(state.nameValue)
}
</script>