From 2316e3144cf7fea891df57d101403457b497c499 Mon Sep 17 00:00:00 2001
From: Yerolling <2911328695@qq.com>
Date: Tue, 24 May 2022 21:16:51 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9=E4=BA=86PrintState=E5=87=BD?=
 =?UTF-8?q?=E6=95=B0?=
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---
 src/bus_io.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/bus_io.c b/src/bus_io.c
index e46aa08..364c1f2 100644
--- a/src/bus_io.c
+++ b/src/bus_io.c
@@ -151,12 +151,13 @@ void PrintState(char *str)
 {
     memset(str, 0, 150);
 
-    int count;
+    int count, flag=1;  //flag用于标记，为使下面第一个循环能够进入
     rail_node_t *p = NULL;
     char target[20], clockwise[20], counterclockwise[20];
 
-    for (count = 0, p = rails; p != NULL; p = p->next_node, count++)
+    for (count = 0, p = rails; flag==1 || p != NULL; p = p->next_node, count++)
     {
+        flag=0;
         target[count] = '0';
         clockwise[count] = '0';
         counterclockwise[count] = '0';