From a3d913dadd4d03de09793a14906d66877a1328b4 Mon Sep 17 00:00:00 2001
From: DavidMorgan <DavidMorgan>
Date: Wed, 15 Apr 2026 16:12:34 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20--=E7=9A=84=E5=A4=84=E7=90=86?=
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---
 src/components/sort-college/DataTable.vue | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/components/sort-college/DataTable.vue b/src/components/sort-college/DataTable.vue
index 4d1873c..e282901 100644
--- a/src/components/sort-college/DataTable.vue
+++ b/src/components/sort-college/DataTable.vue
@@ -81,7 +81,7 @@
   ]);
 
   const rankDiff = (index: number, item: any) => {
-    return index === props.data.length - 1 ? item["rankLine"] !== '--' ?  item["rankLine"] - props.data[index + 1]["rankLine"] : '--' : '--';
+    return index === props.data.length - 1 ? item["rankLine"] !== '--' && props.data[index + 1]["rankLine"] !== '--' ?  item["rankLine"] - props.data[index + 1]["rankLine"] : '--' : '--';
   };
 
   const recompileData = computed(() => {