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<>一、使用vuex
<>1.安装vuex
npm install vuex@next --save
<>2.使用vuex
从vue官网中可以得知vue3使用vuex的方法改变了。
<>2.1src下新建文件store
新建文件index.js
<>2.2配置store
import { createStore } from "vuex"; //创建状态 const state = { } //创建actions const
actions= { } //创建mutataions const mutations = { } //创建store const store =
createStore({ state, actions, mutations }) //暴露出去 export default store
<>2.3添加到vue中的app
import { createApp } from 'vue' import App from './App.vue' import store from
'./store/index' createApp(App).use(store).mount('#app')
<>2.4使用store
首先在组件中引入
import { useStore } from 'vuex'
在setup中使用useStore就是对store进行操作
不如直接新建变量，方便操作
const store = useStore();
总的代码来看，引入挂载钩子查看是否引入
import { onMounted } from '@vue/runtime-core'; import { useStore } from 'vuex'
export default { name: 'HelloWorld', props: { msg: String }, setup(){ const
store= useStore(); onMounted(()=>{ console.log(store) }) } }
控制台查看，store确实引入，可以进行下一步操作。
