状态管理（vuex）的使用

import { createStore } from "vuex";
let store = createStore({
    state:{
        // num:0
    },
    getters:{
        // gNum(state){
        //     return state.num *10
        // }
    },
    mutations:{
        // changeNum(state,i){
        //     state.num += i
        // }
    },
    actions:{
        // aChangeNum(context,i){
        //     context.commit('changeNum',i)
        // }
    }
})
export default store

import { createApp } from 'vue'
import './style.css'
import App from './App.vue'
import router  from "./router";
import store from "./store";
createApp(App).use(router).use(createPinia()).use(store).use(pinia).mount('#app')