element ui中el-image组件查看图片的坑

比如说上传组件使用el-image-viewer组件去看，如果用错了，你会发现，你每次只能看一张图片

<template><div><el-upload action="#" list-type="picture-card" :auto-upload="false" :file-list="fileList"@change="handleChange">上传<template #file="{ file }"><div><img class="el-upload-list__item-thumbnail" :src="file.url" alt="" /><span class="el-upload-list__item-actions"><span class="el-upload-list__item-preview" @click="handlePictureCardPreview(file)">瞎看</span><span class="el-upload-list__item-delete" @click="handleDownload(file)">下载</span><span class="el-upload-list__item-delete" @click="handleRemove(file)">删除</span></span></div></template></el-upload><el-image-viewer v-if="previewVisibleRef" :url-list="srcList" :initial-index="previewIndexRef"@close="previewVisibleRef = false" /></div>
</template><script setup>
import { ref } from 'vue';const srcList = ref([]);
const fileList = ref([]);
const previewVisibleRef = ref(false);
const previewIndexRef = ref(0);
const carouselArr = 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',
])
const handleChange = (file, fileList) => {// 当上传文件改变时，更新文件列表和 srcListfileList.value = fileList;srcList.value.push(file.url);
};const handlePictureCardPreview = (file) => {// 设置预览图片的索引previewIndexRef.value = srcList.value.indexOf(file.url);// 显示图片预览previewVisibleRef.value = true;
};</script>

再比如轮播图点一张看所有图片

<template><div><el-carousel height="150px"><el-carousel-item v-for="item in carouselArr" :key="item" @click="show(item)"><img :src="item" alt=""></el-carousel-item></el-carousel><el-image-viewer v-if="previewVisibleRef" :url-list="srcList" :initial-index="previewIndexRef"@close="previewVisibleRef = false" /></div>
</template><script setup>
import { ref } from 'vue';const srcList = ref([]);
const previewVisibleRef = ref(false);
const previewIndexRef = ref(0);
const carouselArr = 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',
])function show(item) {srcList.value = carouselArr.valuepreviewVisibleRef.value = true;}
</script><style>
/* 样式保持不变 */
</style>

而el-image组件是单一需求，更使用单一需求和图片，总之el-image-viewer是用来看相册一类的，比较方便，官网上面的api要特别注意一下，是有区分的

el-image：如下