vue3中用Element Plus 走马灯组件时，鼠标滚动控制轮播效果

需求：在垂直方向上可以通过滚动鼠标，来实现每次只轮播一张图片。

实现：

html部分：

  <div @wheel="goWheel">
    <el-carousel
      ref="swiper"
      height="100vh"
      indicator-position="none"
      :loop="false"
      direction="vertical"
      :autoplay="false"
    >
      <el-carousel-item>
        
        <video class="video_item" loop autoplay muted src="../../assets/video/1.mp4">video>
      el-carousel-item>
    el-carousel>
  div>

js部分：

<script setup>
import { ref } from "vue";
const one = ref(true); //当one为true时执行轮播。以此来控制每次轮播图切换的张数为1
const swiper = ref(null);

function goWheel(event) {
  // 当鼠标滚轮向下滚动时，其返回值大于零，向上滚动时其返回值小于零
  if (event.deltaY > 0 && one.value) {
    swiper.value.next();
    one.value = false;
    setTimeout(() => {
      one.value = true;
    }, 500);
  }
  if (event.deltaY < 0 && one.value) {
    swiper.value.prev();
    one.value = false;
    setTimeout(() => {
      one.value = true;
    }, 500);
  }
}
</script>