From 53b9d47f3c9be0bb352b504e5684cceb7421ae39 Mon Sep 17 00:00:00 2001
From: nvhaizi1 <t412166221@163.com>
Date: Wed, 18 May 2022 17:26:40 +0800
Subject: [PATCH] =?UTF-8?q?FindNode=E5=87=BD=E6=95=B0?=
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---
 src/rail.c | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/src/rail.c b/src/rail.c
index bd21bb6..bd8d8a1 100644
--- a/src/rail.c
+++ b/src/rail.c
@@ -39,4 +39,27 @@ rail_node_t *CreateRails(int length, int node_num)
     head->last_node = node;
 
     return head;
-}
\ No newline at end of file
+}
+
+rail_node_t *FindNode(rail_node_t *rails, int id)
+{
+    rail_node_t *p = NULL;
+    if(rails)
+    {
+        if(rails->id == id)
+        {
+            return rails;
+        }
+        if(rails->next_node != NULL)
+        {
+            p = FindNode(rails->next_node, id);
+            if(p) 
+            {
+                return p;
+            }
+        }
+        
+    }
+    return NULL;
+}
+