1. 在根目录下新建store目录, 在store目录下创建index.js定义状态值 import Vue from 'vue'; import Vuex from 'Vuex'; import Vuex from 'vuex'; Vue.use(Vuex); const store = new Vuex.Store({ state: { login: false, token: '', avatarUrl: '', userNAME: '' }, mutations: { login(state, provider) { console.log(state) console.log(provider) state.login = true; state.token = provider.token; state.userName = provider.userName; state.avatarUrl = provider.avatarUrl; }, logout(state) { state.login = false; state.token = ''; state.userName = ''; state.avatarUrl = ''; } } }) export default store 2. 在main.js挂载Vuex import store from './store' Vue.prototype.$store = store 3. 在页面中使用 import { mapState, mapMutations } from 'vuex'; export default { computed: { ...mapState(['avatarUrl','login','userName']) }, methods: { ...mapMutations(['logout']) } } 在我实际开发项目中 使用如下