vue3+element plus组件库中el-carousel组件走马灯特效，当图片变动时下面数字也随着图片动态变化_el-carousel 动态

1.效果图

2.html

<section style="height:30%">
                        <div class="left-img1-title">
                            <img src="../assets/img/title.png"
                                 alt=""
                                 srcset="">
                            <div class="text">回收垃圾数量</div>
                        </div>
                        <div style="">
                            <el-carousel :interval="4000"
                                         indicator-position="none"
                                         type="card"
                                         height="100px"
                                         @change="swch">
                                <el-carousel-item v-for="item in carouselImg"
                                                  :key="item">
                                    <h3 text="2xl"
                                        justify="center"><img :src="item.img"
                                             alt=""
                                             srcset=""
                                             class="carousel-image"
                                             style="height: 100px;"
                                             justify="center"></h3>
                                </el-carousel-item>
                            </el-carousel>
                        </div>
                        <div class="carousel-text">
                            <div v-for="(item,index) in count"
                                 :key="index">
                                <div>{{item.name}}</div>
                                <div class="text">{{item.data}}kg</div>
                            </div>
                        </div>
                    </section>

3.js 

 // 准备数据 
// 1.vue3采用import的方式引入图片,不然会报错，引入方法之一
    import bl from '@/assets/img/bl.png'
    import js from '@/assets/img/js.png'
    import sl from '@/assets/img/sl.png'
    import zl from '@/assets/img/zl.png'
    import zw from '@/assets/img/zw.png'
    import pie from '@/components/pie.vue' 
 //2.本页面采用第二种方式，结合html代码
 // 引入本地图片
    let carouselImg = reactive([
        {img: bl},
        {img: js},
        {img: sl},
        {img: zl},
        {img: zw},
    ])
 //回收列表
    let countList = reactive([])
    //回收垃圾数量
    let count = reactive([
            { name: '今日回收数量', data: 0 },
            { name: '累计回收总数', data: 0 },
            { name: '户均回收量'  , data: 0 }
        ])
// 填充回收量
    const getNum = (data) => {
            let list = [1,2,3,4,5]
            let allCount = 0
            let allDay = 0
            data.map(item=> {
                allCount += (item.weight*100)
                allDay += (item.weightDay*100)
                item.typeId=="1026"?list[0]=item:''
                item.typeId=="4"?list[1]=item:''
                item.typeId=="2"?list[2]=item:''
                item.typeId=="1017"?list[3]=item:''
                item.typeId=="1121"?list[4]=item:''
            })
            allCount = (allCount/100).toFixed(2)
            allDay = (allDay/100).toFixed(2)
 
            countList = list
            // 回收量初始化
            count[0].data = list[0].weightDay
            count[1].data = list[0].weight
            count[2].data = list[0].households
        }
 
        // 幻灯片切换（回收量切换）
        const  swch = (index) => {
            let list = countList
            count[0].data = list[index].weightDay
            count[1].data = list[index].weight
            count[2].data = list[index].households
        }

4.css

.left-img1-title-two {
					width: 27vw;
					margin: 0 1.875rem;
					.content {
						display: flex;
						justify-content: space-around;
						margin-bottom: 1.25rem;
						.bg1 {
							width: 14.375rem;
							height: 6.25rem;
							background: url('../assets/img/1.png') no-repeat;
							background-size: 14.375rem 6.25rem;
							display: flex;
							justify-content: space-around;
							align-items: center;
							text-align: center;
							img {
								width: 3.125rem;
								height: 3.125rem;
							}
							.shou {
								color: white;
							}
							.text {
								color: aqua;
							}
						}
						.bg2 {
							width: 14.375rem;
							height: 6.25rem;
							background: url('../assets/img/2.png') no-repeat;
							background-size: 14.375rem 6.25rem;
							display: flex;
							justify-content: space-around;
							align-items: center;
							text-align: center;
							img {
								width: 3.125rem;
								height: 3.125rem;
							}
							.shou {
								color: white;
							}
							.text {
								color: aqua;
							}
						}
					}
					.content1 {
						display: flex;
						justify-content: space-around;
						margin-bottom: 1.875rem;
						.bg1 {
							width: 14.375rem;
							height: 6.25rem;
							background: url('../assets/img/3.png') no-repeat;
							background-size: 14.375rem 6.25rem;
							display: flex;
							justify-content: space-around;
							align-items: center;
							text-align: center;
							img {
								width: 3.125rem;
								height: 3.125rem;
							}
							.shou {
								color: white;
							}
							.text {
								color: aqua;
							}
						}
						.bg2 {
							width: 14.375rem;
							height: 6.25rem;
							background: url('../assets/img/4.png') no-repeat;
							background-size: 14.375rem 6.25rem;
							display: flex;
							justify-content: space-around;
							align-items: center;
							text-align: center;
							img {
								width: 3.125rem;
								height: 3.125rem;
							}
							.shou {
								color: white;
							}
							.text {
								color: aqua;
							}
						}
					}
				}