修改bug

src/view/bookMark/bookMark1.vue

@@ -221,9 +221,9 @@ export default {
             this.selectItem = item;
             startLoading();
             queryLiterature(item.originId).then(res => {
-                if(res.list.length>0){
+                if (res.list.length > 0) {
                     previewPdf('LiteraturePDF', res.list[0].name);
-                }else{
+                } else {
                     this.$message.warning('暂未找到此文件！');
                 }
                 endLoading();
@@ -268,7 +268,9 @@ export default {
     activated() {
         queryCollectionFolder(this.userInfo.account).then(res => {
             this.collectionFolder = res;
-            res[0].id && this.queryCollectionFolderNews(res[0].id, 0);
+            if (res.length > 0) {
+                res[0].id && this.queryCollectionFolderNews(res[0].id, 0);
+            }
         })
             .catch((err) => {
                 this.$message.warning(err.message);