element-plus/docs/examples/image/lazy-load.vue

<template>
  <div class="demo-image__lazy">
    <el-image v-for="url in urls" :key="url" :src="url" lazy></el-image>
  </div>
</template>

<script lang="ts">
import { defineComponent, ref } from 'vue'

export default defineComponent({
  setup() {
    const urls = ref([
      'https://fuss10.elemecdn.com/a/3f/3302e58f9a181d2509f3dc0fa68b0jpeg.jpeg',
      'https://fuss10.elemecdn.com/1/34/19aa98b1fcb2781c4fba33d850549jpeg.jpeg',
      'https://fuss10.elemecdn.com/0/6f/e35ff375812e6b0020b6b4e8f9583jpeg.jpeg',
      'https://fuss10.elemecdn.com/9/bb/e27858e973f5d7d3904835f46abbdjpeg.jpeg',
      'https://fuss10.elemecdn.com/d/e6/c4d93a3805b3ce3f323f7974e6f78jpeg.jpeg',
      'https://fuss10.elemecdn.com/3/28/bbf893f792f03a54408b3b7a7ebf0jpeg.jpeg',
      'https://fuss10.elemecdn.com/2/11/6535bcfb26e4c79b48ddde44f4b6fjpeg.jpeg',
    ])

    return {
      urls,
    }
  },
})
</script>

<style lang="scss" scoped>
.demo-image__lazy {
  height: 400px;
  overflow-y: auto;

  .el-image {
    display: block;
    min-height: 200px;
    margin-bottom: 10px;

    &:last-child {
      margin-bottom: 0;
    }
  }
}
</style>