vue.js如何安装vuex

  "dependencies": {
    "vue": "^2.5.2",
    "vue-router": "^3.0.1",
    "vuex": "^3.3.0"
  },

import Vue from 'vue'
import Vuex from 'vuex'
Vue.use(Vuex);
export default new Vuex.Store({
    //所有的数据都放在state中
    state:{},
    //操作数据，唯一的通道是mutations
    mutations:{},
    //actions,可以来做异步操作，然后提交给mutations，而后再对state(数据)进行操作
    actions:{}
})

// 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'   //导入store
Vue.config.productionTip = false
/* eslint-disable no-new */
new Vue({
  el: '#app',
  router,
  store,   //在new Vue中使用
  components: { App },
  template: &#39;<App/>&#39;
})