解决uni-app props 传递数组修改后不能使用问题

//NoticesMarquee 组件
<view v-for="(item, index) in tempList" :key="index" >
        {{item.Title}}
</view>

<template>
    <view>
           <!--使用子组件  -->
        <notices-marquee  :items="noticesList" ></notices-marquee>
    </view>
</template>

<script>
        import NoticesMarquee from '@/components/index/NoticesMarquee'
    export default {
        components:{
            NoticesMarquee
        },
        data() {
            return {
                noticesList: [{
                        Title: '4874545454554545454545454',
                        Id: 2
                    },
                    {
                        Title: '7888844844456454564564565465656',
                        Id: 1
                    },
                    {
                        Title: '78947898526665656+56+5+656',
                        Id: 3
                    },
                ],
            };
        }
    }
</script>
<style>

</style>

export default {
        props: ['items'],
        methods: {
        showMarquee: function() {
                let _this = this;
                setTimeout(function() {
                    _this.items.push(_this.items[0]);
                    _this.items.shift()
                }, 500)
            },
        },
    }

export default {
        props: ['items'],
        data() {
            return {
                tempList: []
            }
        },
        methods: {
            showMarquee: function() {
                let _this = this;
                setTimeout(function() {
                    _this.tempList.push(_this.tempList[0]);
                    _this.tempList.shift()
                }, 500)
            },
        },
        created() {
            this.tempList = this.items
        }
    }