修改上传作业类型

src/components/study.vue

@@ -1607,7 +1607,7 @@
                 </div>
                 <input
                   type="file"
-                  accept="*"
+                  accept="image/*"
                   style="display: none"
                   @change="beforeUpload1($event, 1)"
                 />

src/components/studyStudent.vue

@@ -1804,7 +1804,7 @@
               /> -->
               <input
                 type="file"
-                accept="*"
+                accept="image/*"
                 capture="camera"
                 style="display: none"
                 @change="beforeUpload1($event, 1)"