核心提示：首先store里面声明getters//声明getters,就是每次count改变时先加上100const getters = {count:function(state){return state....
首先store里面声明getters
//声明getters,就是每次count改变时先加上100
const getters = {
count:function(state){
return state.count +=100;
}
}
//导出
export default new Vuex.Store({
//导出状态常量
state,
//导出mutations
mutations,
//导出getters
getters
})
然后修改Count.vue组件
computed:{
//扩展mapState
...mapState(['count']),
count(){
return this.$store.getters.count;
}
}
简写：需另外引入mapGetters
import { mapState,mapMutations,mapGetters } from 'vuex'
computed:{
//扩展mapState
...mapState(['count']),
...mapGetters(['count'])
}
