vue4+提供了useStore,引入useStore,其他写法就可以和之前的写法类似,具体如下:

<template>

<div>{{ $store.state.count }}</div>

<button @click="myCommit ">点击</button>

</template>

script:

import { useStore } from 'vuex';

setup(){

const store = useStore();

// 取值

//store.state.count

//commit提交

const myCommit = () =>{

store.commit("commitValue")

}

return { myCommit }

}