edit

src/app/routes/ticket-management/components/express-info/express-info.component.ts

@@ -142,7 +142,7 @@ export class ExpressInfoComponent implements OnInit {
             this.selectedRows.map(item => item.expressCode)
           )
           .subscribe(res => {
-            if (res) {
+            if (res?.pdfUrl) {
               this.service.reviewPDF(res.pdfUrl);
             } else {
               this.service.msgSrv.warning('下载失败');