diff --git a/src/bus.c b/src/bus.c
index 19addc9..924d9ba 100644
--- a/src/bus.c
+++ b/src/bus.c
@@ -15,17 +15,16 @@ void RunBus(int direction)
 }
 int GetBusPosition()
 {
-    int a,b,c;
-    b=0;
+    int a, b, c;
+    b = 0;
     rail_node_t *p = rails;
-    a=the_bus->rail_node_pos->id;//指向站点的指针以及这个指针对应的站台id
-    while(p->id != a)
-    {   
-        b+=p->next_node_distance;
-        p=p->next_node;
+    a = the_bus->rail_node_pos->id;//指向站点的指针以及这个指针对应的站台id
+    while (p->id != a){
+        b += p->next_node_distance;
+        p = p->next_node;
     }
-        c=b+(the_bus->distance);
-        return c;
+    c = b + (the_bus->distance);
+    return c;
 }
 int JudgeOnStation()
 {