2019-08-20 vuex使用过程

1.声明状态

state:{

    isLogin:false,

    username:'',

    token:''}

getters:{

    isLogin:state => state.isLogin,

    token:state => state.token,

    username: state => state.username

},

mutations:{

    updateLogin(state,payload){

        state.isLogin = payload;

},

updateToken(state,payload){

     state.token = payload;

}

2. 修改状态

this.$store.commit("updateLogin",true);

this.$store.commit("updateToken", ‘请求数据获取token');

3.获取token

this.$store.state.token