1、下载插件

npm install vuex-persistedstate --save

2、引入即可

import Vue from 'vue'
import Vuex from 'vuex'
import createPersistedState from 'vuex-persistedstate'
Vue.use(Vuex)

const store = new Vuex.Store({
    state: {
        login: null
    },
    mutations: {
        setlogin(state, login) {
            
            state.login = login
        }
    },
    getters: {

    },
    actions: {

    },
    plugins: [    
        createPersistedState(),  
    ]
})
export default store