增加只能上传zip的提示

src/components/page/articleAdd.vue

@@ -2056,11 +2056,18 @@ export default {
             // return isWORd;
         },
         beforeupload_picturesAndTables(file) {
+            let flieArr = file.name.split('.');
+            let fileSuffix = flieArr[flieArr.length - 1];
+            if (fileSuffix != 'zip') {
+                this.$message.error('Only ZIP files can be uploaded (file format: .zip).');
+                return false;
+            }
+         
             // const iszip =
-            //     file.type === 'application/x-zip-compressed' ||
-            //     file.name.split('.')[1] === 'rar';
+            //     file.type === 'application/x-zip-compressed';
             // if (!iszip) {
-            //     this.$message.error('Only compressed files can be uploaded(.rar,.zip)');
+            //     this.$message.error('Only compressed files can be uploaded(.zip)');
+            //     return false;
             // }
             // return iszip;
         },
@@ -2190,6 +2197,10 @@ export default {
                 });
         },
         removefilepicturesAndTables(file, fileList) {
+        console.log('file at line 2199:', file)
+       if(!file){
+return false
+       }
             this.form.picturesAndTables = '';
             this.fileL_picturesAndTables = [];
             this.$api