this.$store.commit('loginStatus', 1);
this.$store.dispatch('isLogin', true);

// 以載荷形式
store.commit('increment'，{
? amount: 10 ? //這是額外的參數(shù)
})
// 或者使用對(duì)象風(fēng)格的提交方式
store.commit({
? type: 'increment',
? amount: 10 ? //這是額外的參數(shù)
})

$ npm install vuex --save

$ npm install vuex@3.6.2 --save

import App from './App'
import store from "./store";
...
 
const app = new Vue({
	store,
    ...App
})
app.$mount()
...

export default {
...
		created(){
		    //在頁(yè)面刷新時(shí)將vuex里的信息保存到localStorage里 https://blog.csdn.net/XinYe666666/article/details/102939381
			window.addEventListener("beforeunload",()=>{
				localStorage.setItem("messageStore",JSON.stringify(this.$store.state))
			})
		    //在頁(yè)面加載時(shí)讀取localStorage里的狀態(tài)信息
	        localStorage.getItem("messageStore") && this.$store.replaceState(Object.assign(this.$store.state,JSON.parse(localStorage.getItem("messageStore"))));
		},
...

import Vue from 'vue'
import Vuex from 'vuex'
import user from './modules/user'
 
Vue.use(Vuex)
 
const store = new Vuex.Store({
   modules: {
     user
   },
});

import { getToken,removeToken } from '@/common/auth.js';
const state={   //要設(shè)置的全局訪(fǎng)問(wèn)的state對(duì)象
     is_login: false,
     curr_uid:0
     //要設(shè)置的初始屬性值
   };
const getters = {   //實(shí)時(shí)監(jiān)聽(tīng)state值的變化(最新?tīng)顟B(tài))
    isLogin(state) {  //承載變化的showFooter的值
       return state.is_login
    },
    getCurrUid(state){  //承載變化的curr_uid的值
       return state.curr_uid
    }
};
const mutations = {
    setLogin(state) {   //自定義改變state初始值的方法，這里面的參數(shù)除了state之外還可以再傳額外的參數(shù)(變量或?qū)ο?;
        state.is_login = true;
    },
    setLogout(state) {  //同上
        state.is_login = false;
		removeToken();		
    },
    setCurrUid(state,uid){ //同上，這里面的參數(shù)除了state之外還傳了需要增加的值sum
       state.curr_uid=uid;
    }
};
 const actions = {
    setLogin(context) {  //自定義觸發(fā)mutations里函數(shù)的方法，context與store 實(shí)例具有相同方法和屬性
        context.commit('setLogin');
    },
    setLogout(context) {  //同上注釋
        context.commit('setLogout');
    },
    setCurrUid(context,uid){   //同上注釋?zhuān)瑄id為要變化的形參
        context.commit('setCurrUid',uid)
     }
};
export default {
    namespaced: true, //用于在全局引用此文里的方法時(shí)標(biāo)識(shí)這一個(gè)的文件名
    state,
    getters,
    mutations,
    actions
}

import { setToken } from 'common/auth.js';
import { mapActions} from 'vuex'; 
export default {
....
methods: {
		...mapActions('user', ['setLogin','setCurrUid']),
		submit() {
			const _self = this;
...
            postLogin({ username:v_username,password:v_password }).then(res => {
                if(res.code==0){
					uni.$u.toast('登錄成功');
                    _self.$store.dispatch("user/setLogin");
					_self.$store.dispatch("user/setCurrUid",res.data.uid);
...

import { mapGetters} from 'vuex';
 
export default {
...
    computed:{
		...mapGetters('user',{ //用mapGetters來(lái)獲取user.js里面的getters
			isLogin:'isLogin',  currUid:'getCurrUid'
		})
	},	
 
    onLoad() {
		this.initData();
	},
	methods: {
		initData() {
            console.log("initData.store=",this.$store);
            console.log('init.isLogin=',this.isLogin);
			console.log('init.currUid=',this.currUid);
...