vuex的使用

1.先安装npm install vuex --save-dev

2.在src下建立文件夹vuex，在vuex里面写store.js

/**
 * Created by ywz on 2017/8/12.
 */
import Vue from ‘vue‘
import Vuex from ‘vuex‘

Vue.use(Vuex)

const store = new Vuex.Store({
  // 定义状态
  state: {
    author: ‘Wise Wrong‘
  },
  mutations:{
    newAuthor (state,msg){
      state.author=msg;
    }
  }
})

export default store

第三步 在main.js中

import Vuex from ‘vuex‘

Vue.use(Vuex);

/* eslint-disable no-new */new Vue({  el: ‘#app‘,  router,  store,  render: h => h(App)});

第四部显示在页面

<div>自拍照{{author}}</div>

computed: {    author()    {        return this.$store.state.author;    }}

第5步 设置修改

methods: {    setAuthor(){      //this.$store.state.author=this.user;      this.$store.commit(‘newAuthor‘,32223);    }},