export const这个报错就哪出问题？我调用就报错

Question

这个报错就哪出问题？我调用就报错,我如何在外面调用settime

export const getNowDate = (options) => {
    var settime=''
    var date = new Date()
    var year = date.getFullYear() //年
    var month = date.getMonth() + 1 //月
    var day = date.getDate() //日
    var hour = date.getHours() //时
    var minute = date.getMinutes() //分
    var second = date.getSeconds() //秒
    var xiaoshi = "";
    if (hour < 10) {
        xiaoshi = "0" + hour;
    } else {
        xiaoshi = hour + "";
    }
    var fenzhong = "";
    if (minute < 10) {
        fenzhong = "0" + minute;
    } else {
        fenzhong = minute + "";
    }
    var miao = "";
    if (second < 10) {
        miao = "0" + second;
    } else {
        miao = second + "";
    }
    console.log(year + '-' + month + '-' + day + ' ' + xiaoshi + ':' + fenzhong + ':' + miao);
    settime= year + '-' + month + '-' + day + ' ' + xiaoshi + ':' + fenzhong + ':' + miao

}


    <script>
    export default {

        data() {
            return {
                a1: '',
                settime: ''
            }

        },
        methods: {
            //下拉刷新
            onPullDownRefresh() {
                console.log('下拉了')
                this.getNowDate()
            }
            //下拉刷新
        }

    }
</script>

Answer 1

this.settime 是啥意思 getNowDate 里 你只能 settiem=xxx 。 在组件里 改变data 。也应该是 this.data=xxx 除非 你封装了 settime的方法