From 8b1e48496bece8dbf49b705dceb10a06efeee977 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=89=BF=E4=BF=9E=E5=98=89?= <lwbcyj@live.cn>
Date: Mon, 12 Oct 2015 11:16:29 +0800
Subject: [PATCH] =?UTF-8?q?1.0=E6=94=B9=E8=BF=9B=E7=A9=BA=E8=A1=8C?=
 =?UTF-8?q?=E6=8F=90=E7=A4=BA=E7=BC=BA=E5=88=86=E5=8F=B7=E7=9A=84bug?=
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---
 1.0/1.0/main.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/1.0/1.0/main.c b/1.0/1.0/main.c
index bfd9ec0..fc20c8e 100644
--- a/1.0/1.0/main.c
+++ b/1.0/1.0/main.c
@@ -218,15 +218,19 @@ loop:;// Let user to input the file path.
 			{
 				k--;
 			}
-			switch ((int)str[k])
+			if (k > 0)
 			{
-			case '{':break;
-			case '}':break;
-			case ')':break;
-			case ']':break;
-			case '>':break;
-			case '\"':break;
-			default:printf("Missing \';\' in line %d.\n", i + 1);
+				switch ((int)str[k])
+				{
+				case '{':break;
+				case '}':break;
+				case ')':break;
+				case ']':break;
+				case '>':break;
+				case '\"':break;
+				case'\0':break;
+				default:printf("Missing \';\' in line %d.\n", i + 1);
+				}
 			}
 		}
 		p = p->next;