删除上传问题

src/components/study.vue

@@ -1264,7 +1264,7 @@
               </div>
               <input
                 type="file"
-                accept="application/pdf, .ppt, .pptx, .xlsx, .xls, application/msword, application/vnd.openxmlformats-officedocument.wordprocessingml.document,image/png, image/gif, image/jpeg"
+                accept="application/.ppt, .pptx, .xlsx, .xls, application/msword, application/vnd.openxmlformats-officedocument.wordprocessingml.document,image/png, image/gif, image/jpeg"
                 style="display: none"
                 @change="beforeUpload1($event, 1)"
               />