diff --git a/problems/0019.删除链表的倒数第N个节点.md b/problems/0019.删除链表的倒数第N个节点.md
index 65651768..7d2fe97e 100644
--- a/problems/0019.删除链表的倒数第N个节点.md
+++ b/problems/0019.删除链表的倒数第N个节点.md
@@ -114,24 +114,28 @@ class Solution {
 ```
 Go:
 ```Go
+/**
+ * Definition for singly-linked list.
+ * type ListNode struct {
+ *     Val int
+ *     Next *ListNode
+ * }
+ */
 func removeNthFromEnd(head *ListNode, n int) *ListNode {
-    result:=&ListNode{}
-    result.Next=head
-    var pre *ListNode
-    cur:=result
-
-    i:=1
-    for head!=nil{
-        if i>=n{
-            pre=cur
-            cur=cur.Next
+    dummyHead := &ListNode{}
+    dummyHead.Next = head
+    cur := head
+    prev := dummyHead
+    i := 1
+    for cur != nil {
+        cur = cur.Next
+        if i > n {
+            prev = prev.Next
         }
-        head=head.Next
         i++
     }
-    pre.Next=pre.Next.Next
-    return result.Next
-
+    prev.Next = prev.Next.Next
+    return dummyHead.Next
 }
 ```