diff --git a/src/views/index.vue b/src/views/index.vue
index 147f718..0574c8d 100644
--- a/src/views/index.vue
+++ b/src/views/index.vue
@@ -827,8 +827,12 @@ const setDot = (e) => {
   rulerRef.value.setDot(dots)
 }
 const table1Current = (e, v) => {
+  if (dotIndex.value === e.index) {
+    dotIndex.value = -1
+  } else {
+    dotIndex.value = e.index || 0
+  }
   console.log(e)
-  dotIndex.value = e.index || 0
 }
 </script>
 <style>