diff --git a/jia/chu/main.cpp b/jia/chu/main.cpp
index 25f490c..e3793a6 100644
--- a/jia/chu/main.cpp
+++ b/jia/chu/main.cpp
@@ -15,68 +15,93 @@ typedef bool(*QCHEN)(int a, int b,int *e);
 int main()
 {
 
-	int a, b;
+	
 	int c = 0;
 	int d = 0;
 	int e = 0;
+	__int64 a, b;
+	/*scanf("%I64d", &a);
+	scanf("%I64d", &b);*/
+
 	/*char f = 0;
 	char *d = &f;*/
 	printf("请输入两个整数\n");
-	scanf("%d%d", &a, &b);
-
-	
-    bool ret1 = Add(a, b,&c);
-	if ( ret1 == 0)
+	scanf("%I64d", &a);
+	scanf("%I64d", &b);
+	if (a > 2147483647)
 	{
-		printf("两个整数相加结果溢出！\n");
-		
+		printf("输入错误！请重新输入！\n");
+		return 0;
 	}
-	else
+	else if (b > 2147483647)
 	{
-
-		printf("两个整数的相加结果是;%d\n", c);
-
+		printf("输入错误！请重新输入！\n");
+		return 0;
 	}
-		//printf("两个整数的相减结果是;%d\n,%d", Sub(a, b, d));
-	bool ret2 = Sub(a, b, &d);
-	if (ret2 == 0)
+	else if (a < -2147483647)
 	{
-		printf("两个整数相减结果溢出！\n ");
-		
-		
+		printf("输入错误！请重新输入！\n");
+		return 0;
 	}
-	else 
+	else if (b < -2147483647)
 	{
-		printf("两个整数的相减结果是;%d\n", d);
+		printf("输入错误！请重新输入！\n");
+		return 0;
 	}
-
-	HMODULE hDLL =LoadLibrary ("../Debug/chen.dll");
-	if (hDLL == NULL)
+	else
 	{
-		printf("加载DLL文件失败\n");
-		return 0;
+		bool ret1 = Add(a, b, &c);
+		if (ret1 == 0)
+		{
+			printf("两个整数相加结果溢出！\n");
 
-	}
-//	PMUL pMul = (PMUL)GetProcAddress(hDLL, "mul");
-	QCHEN qChen = (QCHEN)GetProcAddress(hDLL, "chen");
+		}
+		else
+		{
 
-	bool ret3 = chen(a, b, &e);
-	
-	if (ret3 == 0)
-	{
-		printf("两个整数相乘结果溢出！\n ");
+			printf("两个整数的相加结果是;%d\n", c);
 
+		}
+		//printf("两个整数的相减结果是;%d\n,%d", Sub(a, b, d));
+		bool ret2 = Sub(a, b, &d);
+		if (ret2 == 0)
+		{
+			printf("两个整数相减结果溢出！\n ");
 
-	}
-	else
-	{
-		printf("两个整数的相乘结果是;%d\n", e);
-	}
 
-	
-	printf("两个整数的相除结果是;%d\n", chu(a,b));
+		}
+		else
+		{
+			printf("两个整数的相减结果是;%d\n", d);
+		}
 
-	system("pause");
-	FreeLibrary(hDLL);
+		HMODULE hDLL = LoadLibrary("../Debug/chen.dll");
+		if (hDLL == NULL)
+		{
+			printf("加载DLL文件失败\n");
+			return 0;
 
+		}
+		//	PMUL pMul = (PMUL)GetProcAddress(hDLL, "mul");
+		QCHEN qChen = (QCHEN)GetProcAddress(hDLL, "chen");
+
+		bool ret3 = chen(a, b, &e);
+
+		if (ret3 == 0)
+		{
+			printf("两个整数相乘结果溢出！\n ");
+
+
+		}
+		else
+		{
+			printf("两个整数的相乘结果是;%d\n", e);
+		}
+
+
+		printf("两个整数的相除结果是;%d\n", chu(a, b));
+
+		system("pause");
+		FreeLibrary(hDLL);
+	}
 }
\ No newline at end of file