Missying55的博客

[Vue warn]: Avoid mutating a prop directly since the value will be overwritten whenever the parent component re-renders. Instead, use a data or computed property based on the prop’s value. Prop being mutated: “placement”

el-upload 上传失败后，文件仍显示在列表上，如图：这个pdf文件上传失败，仍显示在列表，给人错觉是上传成功的，所以，我们把它去掉~，下面上代码：<el-upload class="upload-file padding" ref="uploadFile" multiple accept="image/jpeg,image/png,image/gif,application/pdf" :http-request="uploadFile" :on-change="onChange