From 79faead702d7ccb24882f2c319805b7a6f222aad Mon Sep 17 00:00:00 2001
From: ithg <ttthg@qq.com>
Date: Thu, 10 Jan 2019 23:13:15 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E5=88=A4=E6=96=AD=E9=81=BF?=
 =?UTF-8?q?=E5=85=8D=E8=B0=83=E7=94=A8fread()=E7=BC=93=E5=86=B2=E5=8C=BA?=
 =?UTF-8?q?=E6=BA=A2=E5=87=BA?=
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---
 sms.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sms.c b/sms.c
index f0cede9..8f195f2 100644
--- a/sms.c
+++ b/sms.c
@@ -173,7 +173,10 @@ void Load() //
 	fp1 = fopen("sql.txt", "rb");
 	fp2 = fopen("num.txt", "rb");
 	fread(&class_num, sizeof(int), 1, fp2);		   //读入信息
-	fread(records, sizeof(CLASS), class_num, fp1); //读入信息
+	if (sizeof(CLASS) > sizeof(class_num))
+	{
+		fread(records, sizeof(CLASS), class_num, fp1); //读入信息
+	}
 	fclose(fp1);
 	fclose(fp2);
 }
@@ -268,6 +271,7 @@ void Buy()
 		system("pause");
 		Query();
 		printf("请输入要订票的班次(若无请输入0):\n");
+		num[0] = '\0';
 		scanf("%s", num);
 		for (i = 0; i < class_num; i++)
 			if (strcmp(num, records[i].number) == 0)