diff --git a/src/controller.c b/src/controller.c
index 2b05d6d..4d87cb8 100644
--- a/src/controller.c
+++ b/src/controller.c
@@ -11,7 +11,6 @@ int FCFSDirection()
     bus_query_t *p = queries;
     int id = the_bus->rail_node_pos->id;   //获取当前站点的id
     
-    
     while(p->node->id == p->next_node->node->id)   //如果下一个请求对应的站点与当前是同一个站点
     {
         p = p->next_node;
@@ -26,16 +25,15 @@ int FCFSDirection()
     {
         int clockwise = 0;
         int counterclockwise = 0;   //用于顺，逆时针方向所经站台计数
-        bus_query_t *t = p;         //将指针p的地址暂存
     
         while(p->node->id != p->next_node->node->id)
         {
             p->node = p->node->next_node;
             clockwise++;
         }//顺时针方向计数
-        while(t->node->id != t->next_node->node->id)
+        while(p->node->id != p->next_node->node->id)
         {
-            t->next_node->node = t->next_node->node->next_node;
+            p->next_node->node = p->next_node->node->next_node;
             counterclockwise++;
         }//逆时针方向计数