//store 中  store.js

import Vue from 'vue'

import Vuex from 'vuex'

Vue.use(Vuex)

const store = new Vuex.Store({

    state: {

        author: 'Youngmon'

    },

    mutations: {

        author(state, newName) {

            state.author = newName;

        }

    },

    actions: { }

})

export default store

/**

//main.js    新增

import store from './store'

Vue.prototype.$store = store

//demo.vue

 this.$store.commit("author","yongmao");

computed: {

    author() {

        return this.$store.state.author

    }

}

 */