diff --git a/student.txt b/student.txt
new file mode 100644
index 0000000..469c59f
--- /dev/null
+++ b/student.txt
@@ -0,0 +1,2 @@
+18408200212 刘宇宽 17 男 2001.03 湖南新化 13873884359 1634704423
+18408200212 周志 18 2000.03 湖南娄底 18378627862 763627376353
\ No newline at end of file
diff --git a/zengjia.exe b/zengjia.exe
index 98ba912..7327afc 100644
Binary files a/zengjia.exe and b/zengjia.exe differ
diff --git a/涓诲嚱鏁�.c b/涓诲嚱鏁�.c
index df05475..1252eba 100644
--- a/涓诲嚱鏁�.c
+++ b/涓诲嚱鏁�.c
@@ -46,11 +46,11 @@ switch(num)
 
 case 1:refresh();break;
 case 2:seek();break;
-//case 3:modify();break;
+case 3:modify();break;
 case 4:add();break;
-/*case 5:dele();break;
+case 5:dele();break;
 case 6:show();break;
-case 7:save();break;*/
+case 7:save();break;
 case 8:exit(0);
 default:printf("请在1-8之间选择\n");
 }
diff --git a/鍒犻櫎鍑芥暟鍜屼繚瀛樺嚱鏁�.c b/鍒犻櫎鍑芥暟鍜屼繚瀛樺嚱鏁�.c
index b1065e8..6c17010 100644
--- a/鍒犻櫎鍑芥暟鍜屼繚瀛樺嚱鏁�.c
+++ b/鍒犻櫎鍑芥暟鍜屼繚瀛樺嚱鏁�.c
@@ -1,4 +1,4 @@
-#include"显示.cpp"
+#include"显示.c"
  void dele() /* 删除信息 */
 {
 int i,j,flag=0;
diff --git a/鍒犻櫎鍑芥暟鍜屼繚瀛樺嚱鏁�.exe b/鍒犻櫎鍑芥暟鍜屼繚瀛樺嚱鏁�.exe
new file mode 100644
index 0000000..7de9db9
Binary files /dev/null and b/鍒犻櫎鍑芥暟鍜屼繚瀛樺嚱鏁�.exe differ
diff --git a/鍒锋柊鍑芥暟鍜屾煡鎵惧嚱鏁�.c b/鍒锋柊鍑芥暟鍜屾煡鎵惧嚱鏁�.c
index d152572..7563d02 100644
--- a/鍒锋柊鍑芥暟鍜屾煡鎵惧嚱鏁�.c
+++ b/鍒锋柊鍑芥暟鍜屾煡鎵惧嚱鏁�.c
@@ -5,7 +5,7 @@ void refresh()/*
 	int i=0;/*计算导入学生的个数*/ 
 	if((fp=fopen("student.txt","r"))==NULL)
 	{
-		printf("cannot open the file");
+		printf("未找到该文件 请先创立该文件并将学生信息保存\n");
 		system("pause");
 		exit(0);/*如未能打开直接退出程序*/	
 	}
diff --git a/瀛︾敓淇℃伅绠＄悊鍑芥暟瀹屾暣鐗�.c b/瀛︾敓淇℃伅绠＄悊鍑芥暟瀹屾暣鐗�.c
new file mode 100644
index 0000000..e9004ef
--- /dev/null
+++ b/瀛︾敓淇℃伅绠＄悊鍑芥暟瀹屾暣鐗�.c
@@ -0,0 +1,53 @@
+#include"删除函数和保存函数.c"
+void modify()/*修改函数*/
+{
+	int num,j,i;
+	char s1[LEN+1],s2[LEN+1];/*用于存放新的学生信息*/
+	loop:printf("请输入要修改学生的学号：");
+	scanf("%s",s1);
+	for(i=0;i<n;i++)
+	if(strcmp(stu[i].id,s1)==0)
+	num=i;
+	else
+	{
+		printf("该学号不存在\n\n");
+		goto loop;/*返回到重新输入学号*/ 
+	}
+	printf("------------------\n");
+	printf("1.修改姓名\n");
+	printf("2.修改年龄\n");
+	printf("3.修改性别\n");
+	printf("4.修改出生年月\n");
+	printf("5.修改地址\n");
+	printf("6.修改电话号码\n");
+	printf("7.修改E-mail地址\n");
+	printf("8.退出本菜单\n");
+	printf("------------------\n");
+	printf("请选择需要的功能编号：");
+	scanf("%d",&j);
+	switch(j)
+	{
+		case 1:  printf("请输入新的姓名:");
+		         scanf("%s",s2);
+				 strcpy(stu[num].name,s2);break;
+		case 2:  printf("请输入新的年龄:");
+		         scanf("%d",&stu[num].age);break;
+		case 3:  printf("请输入新的性别:");
+		         scanf("%s",s2);
+		         strcpy(stu[num].sex,s2);break;
+		case 4:  printf("请输入新的出生年月:");
+		         scanf("%s",s2);
+		         strcpy(stu[num].birth,s2);break;
+		case 5:  printf("请输入新的地址:");
+		         scanf("%s",s2);
+		         strcpy(stu[num].add,s2);break;
+		case 6:  printf("请输入新的电话号码:");
+		         scanf("%s",s2);
+		         strcpy(stu[num].tel,s2);break;
+		case 7:  printf("请输入新的邮件地址:");
+		         scanf("%s",s2);
+				 strcpy(stu[num].email,s2);break;
+		case 8:  return;
+		default: printf("请在1-8中进行选择\n"); 
+	}
+} 
diff --git a/瀛︾敓淇℃伅绠＄悊鍑芥暟瀹屾暣鐗�.exe b/瀛︾敓淇℃伅绠＄悊鍑芥暟瀹屾暣鐗�.exe
new file mode 100644
index 0000000..ff65ba7
Binary files /dev/null and b/瀛︾敓淇℃伅绠＄悊鍑芥暟瀹屾暣鐗�.exe differ
diff --git a/鏄剧ず.exe b/鏄剧ず.exe
index 68ae585..f0c454d 100644
Binary files a/鏄剧ず.exe and b/鏄剧ず.exe differ