优化

src/views/examination/MixLabelPrinter.vue

@@ -93,7 +93,9 @@ const begnPrint = async () => {
     }
   }
   selectMaxLabelRange().then((origin) => {
-    startLabel = origin.advise
+    if (origin.advise) {
+      startLabel = origin.advise
+    }
   })
 }