WECHAT-UNIAPP/store/modules/moduleB.js

export default {
    state: {
        timestamp: 1608820295//初始时间戳
    },
    getters: {
        timeString(state) {//时间戳转换后的时间
            var date = new Date(state.timestamp);
            var year = date.getFullYear();
            var mon  = date.getMonth()+1;
            var day  = date.getDate();
            var hours = date.getHours();
            var minu = date.getMinutes();
            var sec = date.getSeconds();
            var trMon = mon<10 ? '0'+mon : mon
            var trDay = day<10 ? '0'+day : day
            return year+'-'+trMon+'-'+trDay+" "+hours+":"+minu+":"+sec;
        }
    },
    mutations: {
        updateTime(state){//更新当前时间戳
            state.timestamp = Date.now()
        }
    },
    actions: {

    }
}