diff --git a/课设.cpp b/课设.cpp
index dd7b0be..fab2ef0 100644
--- a/课设.cpp
+++ b/课设.cpp
@@ -7,6 +7,7 @@
 #define N 7
 void read();
 void save();
+
 int size=3;
 struct student
 {
@@ -15,6 +16,7 @@ struct student
 	int scorem,scoreq,scoreg,scorey;
 	char ximing[20];
 }stu[N],temp;
+
 void input()      
 {
 	system("cls");
@@ -79,7 +81,7 @@ void paixu()
 	for(int i=0;i<size;i++)
 		printf("%s\t%s\t%d\t%d\t%d\t%d\t%s\n",stu[i].num,stu[i].name,stu[i].scorem,stu[i].scoreq,stu[i].scoreg,stu[i].scorey,stu[i].ximing);
 }
-void xiugai()
+void xiugai() 
 {
 	system("cls");
 	printf("\t************Ð޸ĽçÃæ************\n");
@@ -188,6 +190,7 @@ void defen()
 		else if(stu[i].scorey==3) w=1;
 		else w=0;
 	}
+	
 	for(i=0;i<size;i++)
 	{
 		if(strcmp(stu[i].ximing,ch1)==0)
@@ -207,14 +210,13 @@ void defen()
 		}
 	}
 }
-void shanchu()
+void shancchu()
 {
 	system("cls");
 	printf("\t************ɾ³ý½çÃæ************\n");
 	char ch1[20];
 	printf("ԭʼÊý¾Ý:\n");
 	int i;
-	
 	read();
 	printf("ÊäÈëÄãҪɾ³ýµÄÔ˶¯Ô±µÄÐÕÃû:\n");
 	scanf("%s",&ch1);
@@ -261,7 +263,7 @@ void charu()
 		for(int i=0;i<size+1;i++)
 			for(int j=i+1;j<size+1;j++)
 				if(stu[i].scorem<stu[j].scorem)
- 				{
+				{
 					temp=stu[i];
 					stu[i]=stu[j];
 					stu[j]=temp;
@@ -273,38 +275,27 @@ void charu()
 		printf("%s\t%s\t%d\t%d\t%d\t%d\t%s\n",stu[i].num,stu[i].name,stu[i].scorem,stu[i].scoreq,stu[i].scoreg,stu[i].scorey,stu[i].ximing);
 	save();
 }
-void save()										
+void save()											
 {
 	FILE *fp;										//¶¨ÒåÖ¸ÏòÎļþµÄÖ¸Õë
-
 	if((fp=fopen("e:\\xiao.txt","w"))==NULL)				//ΪÊä³ö´ò¿ªÒ»¸ö¶þ½øÖÆÎļþ,Ϊֻд·½Ê½
-	{ 
-		printf("´ò²»¿ªÎļþCannot open the file\n"); 
-		return;										//Èô´ò²»¿ªÔò·µ»Ø²Ëµ¥ 
-	} 
-	printf("\n±£´æÖÐ...Saving the file......\n"); 
-
+    printf("\n±£´æÖÐ...Saving the file......\n"); 
 	for(int i=0;i<size;i++)
 		fprintf(fp,"%s\t%s\t%d\t%d\t%d\t%d\t%s\n",stu[i].num,stu[i].name,stu[i].scorem,stu[i].scoreq,stu[i].scoreg,stu[i].scorey,stu[i].ximing);
-	fclose(fp);								
+	fclose(fp);										//¹Ø±ÕÎļþ
 	printf("±£´æ³É¹¦....Save the file successfully!\n"); 
 } 
 void read()
 {
 	FILE *fp;//¶¨ÒåÖ¸ÏòÎļþµÄÖ¸Õë
 	if((fp=fopen("e:\\xiao.txt","r"))==NULL)				//ΪÊä³ö´ò¿ªÒ»¸ö¶þ½øÖÆÎļþ,Ϊֻд·½Ê½
-	{ 
-		printf("´ò²»¿ªÎļþCannot open the file\n"); 
-		return;										//Èô´ò²»¿ªÔò·µ»Ø²Ëµ¥ 
-	} 
 	fscanf(fp,"Ô˶¯Ô±ºÅÂë,ÐÕÃû,100³É¼¨,ǦÇò³É¼¨,Ìø¸ß³É¼¨,ÌøÔ¶³É¼¨,ϵÃû:\n");
-
 	for(int i=0;i<size;i++)
 	{		
 		fscanf(fp,"%s\t%s\t%d\t%d\t%d\t%d\t%s\n",&stu[i].num,&stu[i].name,&stu[i].scorem,&stu[i].scoreq,&stu[i].scoreg,&stu[i].scorey,&stu[i].ximing);
 		printf("%s\t%s\t%d\t%d\t%d\t%d\t%s\n",stu[i].num,stu[i].name,stu[i].scorem,stu[i].scoreq,stu[i].scoreg,stu[i].scorey,stu[i].ximing);
 	}
-	fclose(fp);									
+	fclose(fp);										//¹Ø±ÕÎļþ
 }
 void menu()
 {
@@ -314,7 +305,7 @@ void menu()
 	time_t t;
 	t=time(NULL);
 	pt=localtime(&t); /*¶ÁȡϵͳÈÕÆÚ²¢°ÑËü·Åµ½½á¹¹ÌåÖÐ*/
-	do{	
+		do{	
 		printf("\t\tµ±Ç°ÏµÍ³ÈÕÆÚ:%d-%d-%d\n",pt->tm_year+1900,pt->tm_mon+1,pt->tm_mday); 
 		printf("======================²Ëµ¥=====================\n");
 		printf("	1.ÊäÈë			2.²éÕÒ		\n");
@@ -343,7 +334,7 @@ void menu()
 			defen();
 			break;
 		case 6:
-			shanchu();
+			shancchu();
 			break;
 		case 7:
 			charu();
@@ -366,6 +357,7 @@ void menu()
 		scanf("%2c",&ch2);
 	}while(ch2=='y');		
 }
+
 int main(void) 
 {
 	system("color f");
diff --git a/课设.exe b/课设.exe
index 54ae6b3..be924fb 100644
Binary files a/课设.exe and b/课设.exe differ