Vue3中引入Vuex

一、安装vuex

npm i vuex@4

二、配置vuex

src
  Ⅼstore
    Ⅼindex.js

store/index.js

// store/index.js
import {createStore} from 'vuex'

export default createStore({
    state: {
        uccu:{1: null},
    },
    mutations: {

    },
    actions: {

    },
})

三、main.js 引入

main.js中引入

//main.js
import store from './store'
const app = createApp(App)
app.use(store)

四、其它组件中使用

import {useStore} from 'vuex'

export default {
    name: "XXXX",
    setup(props, context){
        const store = useStore()
        // ....
        return {
        //...
        }
    }
}