store.js

state:{setVal:'  '}

mutatios:{  newSet(state,val){ state.setVal = val }   }

 

 

<script>

import {mapstate,mapMutations} from 'vuex'

取值

computed:{

...mapState(['setVal'])

}

值：this.setVal

更改

methods:{

　　...mapMutatios(['newSet'])

}

this.newSet('传值')

</script>