diff --git a/problems/0141.环形链表.md b/problems/0141.环形链表.md
index 0712a2a2..ddd83c94 100644
--- a/problems/0141.环形链表.md
+++ b/problems/0141.环形链表.md
@@ -106,6 +106,21 @@ class Solution:
 ## Go
 
 ```go
+func hasCycle(head *ListNode) bool {
+    if head==nil{
+        return false
+    } //空链表一定不会有环
+    fast:=head
+    slow:=head //快慢指针
+    for fast.Next!=nil&&fast.Next.Next!=nil{
+        fast=fast.Next.Next
+        slow=slow.Next
+        if fast==slow{
+            return true  //快慢指针相遇则有环
+        }
+    }
+    return false
+}
 ```
 
 ### JavaScript