有时候需要动态创建上传框，这样就要求上传成功后数据要根据地方去赋值
<el-upload
class="avatar-uploader"
:headers="config"
:action="upLoadUrl"
:show-file-list="false"
:data="item"
:on-success="(response, file, fileList) => {
return handleUploadSuccess(response, file, fileList, item)
}"
:before-upload="beforePicUpload"
>
<img v-if="item.bill_url" :src="coverUrl(item.bill_url)" class="avatar">
<i v-else class="el-icon-plus avatar-uploader-icon"></i>
</el-upload>
标签：el,upload,fileList,传递,参数,上传 From： https://www.cnblogs.com/haonanZhang/p/18327124