npm install babel-plugin-transform-object-rest-spread -D 

{

 "presets": [

  ["env", { "modules": false }]

 ],

 "plugins": ["transform-object-rest-spread"] //增加这一行

} 

<script>

  import {mapState,mapGetters} from 'vuex'

  export default {

    methods:{

      increment(){

        this.$store.commit('increment');

      }

    },

    computed:{

      ...mapGetters([

        'count'

      ]),

      ...mapState({

        counts(){

          return this.$store.state.count;

        }

      })

    }

  }

</script>