export default {
    memberObj:{
        name:‘初始姓名‘,
    },
    setMemberObj(data){
        this.memberObj = Object.assign({},this.memberObj,data) 
    }
}

import Vue from ‘vue‘
import App from ‘./App‘
import member from ‘./common/common.js‘

import store from ‘./store‘

Vue.config.productionTip = false

Vue.prototype.$store = store
Vue.prototype.$member = member;
Vue.prototype.$enName = ‘ming‘;

App.mpType = ‘app‘

const app = new Vue({
    store,
    ...App
})
app.$mount()

onShow:function(){
    //获取全局设置的变量
    this.memberData = this.$member.memberObj;
    console.log(this.memberData);
    //输出值{name:‘初始姓名‘}
},
methods: {
  bindLogin() {
    let that = this;
    let obj = {
        name:‘爱尚‘,
        sex:‘男‘
    }
    that.$member.setMemberObj(obj);
  },
}
//再次在别的页面调用时内容已发生变化
console.log(this.$member.memberObj)
//{name:‘爱尚‘,sex:‘男‘}

1、创建store文件，store.js
import Vue from ‘vue‘
import Vuex from ‘vuex‘

Vue.use(Vuex)

const store = new Vuex.Store({
    state: {
        memberData:‘‘,
        initName:‘‘
    },
    mutations: {
        copy(state,cont){
            //单一的改变某一个变量
            console.log(state)
            console.log(cont)
            state.memberData = cont;
        },
        change(state,contObj){
            //通过传入的变量去改变对应的全局变量
            let str = contObj.str;
            let cont = contObj.cont;
            state[str] = cont;
        },
    },
    actions:{
        copeFun:function(context,mData){
            context.commit(‘copy‘,mData)
        },
        changeFun:function(context,obj){
            context.commit(‘change‘,obj)
        }
    }
})

export default store

import Vue from ‘vue‘
import App from ‘./App‘

import store from ‘./store‘;

Vue.config.productionTip = false;

Vue.prototype.$store = store;

App.mpType = ‘app‘;

const app = new Vue({
    store,
    ...App
})
app.$mount()

1、直接通过全局挂载的那种方式去获取

computed:{
   memberData:function(){
      return this.$store.state.memberData;
   },
},

import {mapState,mapMutations} from "vuex"；
computed:{
　　//正常写法
    ...mapState({
        memberData:state => state.memberData,
        initName:state => state.initName,
    })

　　//当变量名一致时（简写）
　　//...mapState([‘initName‘,‘memberData‘])

},

methods:{
    //单一方法改变指定的变量
  changeMember:function(){
    let mem = {
        name:‘爱尚丽明‘,
        age:‘28‘
    }
    this.$store.dispatch(‘copeFun‘,mem)
    },      
       //通过传入要改的变量名进行改变变量
    changeMemberPub:function(){
      let memberData = {
        name:‘爱尚‘,
        age:25
    }
    let $obj = {}
    $obj.cont = memberData ;
    $obj.str = ‘memberData‘
    this.$store.dispatch(‘changeFun‘,$obj)
   }       
}