详解如何在vue-cli中使用vuex

import Vue from 'vue'
import App from './App'
import router from './router'
import Vuex from 'vuex'; 

Vue.config.productionTip = false

//注意下面的代码
Vue.use(Vuex);
const store = new Vuex.Store({
 state： {}，
 getters: {},
 actions: {},
 mutations: {}
});
//注意router选项，此处的写法等同于store: store
new Vue({
 el: '#app',
 router,
 store,
 components: { App },
 template: '<App/>'
})

import Vue from 'vue';
import Vuex from 'vuex';
import state from './rootState.js';
import getters from './getters.js';
import mutations from './mutations.js';
import actions from './actions.js';

Vue.use(Vuex);
const store = new Vuex.Store({
 state,
 getters,
 actions,
 mutations
});

export default store;

const state = {
 count: 0,
 arr: [0,1,2,3,4,5]
}

export default state;

import Vue from 'vue'
import App from './App'
import router from './router'
import store from './store/index'; 

Vue.config.productionTip = false

new Vue({
 el: '#app',
 router,
 store,
 components: { App },
 template: '<App/>'
})

// The Vue build version to load with the `import` command
// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
import Vue from 'vue'
import App from './App'
import router from './router'
import store from './store/index'; 

Vue.config.productionTip = false

//在vue中使用vuex必须先调用vue.use方法
Vue.use(Vuex);
//具体挂载到vue原型的哪个属性上，可以由我们自行决定
//遇到配置繁多的情况也可以进行分割
Vue.prototype.$store = new Vuex.Store({
 state： {}，
 getters: {},
 actions: {},
 mutations: {}
});

//没有了store选项
new Vue({
 el: '#app',
 router,
 components: { App },
 template: '<App/>'
})