vuex代碼(部分)：

const state = {
    shopNameList: [],
    test: [1, 2, 3]
}
const getters = {
    shopNameList: (state) => state.shopNameList,
    test: (state) => state.test
}

組件代碼（部分）：

computed: {
        ...mapGetters({ // 這樣可以獲取
            shopNameList: 'shopNameList',
            test: 'test'
        })
    },
computed: {
        ...mapState({ // 獲取不到數(shù)據(jù)
            shopNameList: 'shopNameList',
            test: 'test'
        })
    },