vue中监听vuex state变化，亲测可用

import {mapGetters} from 'vuex'

computed: {
        ...mapGetters([
            'showChip'
        ])
},
watch: {
        showChip(newVal) {
            this.chipInState = newVal
        }
}

//试了几种方案，只有这个起效果了，记录一下。