From 1da89727db72168135a1275eda9582938713c668 Mon Sep 17 00:00:00 2001
From: "2675833891@qq.com" <2675833891@qq.com>
Date: Tue, 8 Jan 2019 17:06:55 +0800
Subject: [PATCH] second commit

---
 f2.c | 454 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 454 insertions(+)
 create mode 100644 f2.c

diff --git a/f2.c b/f2.c
new file mode 100644
index 0000000..77b1ff5
--- /dev/null
+++ b/f2.c
@@ -0,0 +1,454 @@
+#include<windows.h>
+#include<stdlib.h>
+#include<string.h>
+#include<stdio.h>
+#define N 100
+struct student
+{
+	char no[9];
+	char name[25];
+	char sex[10];
+	int age;
+	char jiguan[25];
+	char xibie[25];
+	char zhuanye[25];
+	int ban;
+}stu[N];
+void menu()//菜单函数
+{
+	int choice,w1;
+	void add();
+	void find();
+	void shanchu();
+	void change();
+	void tongji();
+	void read();
+	void input();//函数声明
+	do{
+		puts("\t*********************");
+		puts("\t    欢迎使用学籍管理系统");
+		puts("\t    1,录入学生资料");
+		puts("\t    2,查找学生资料");
+		puts("\t    3,删除学生资料");
+		puts("\t    4,修改学生资料");
+		puts("\t    5,按学号或专业输出学生资料");
+		puts("\t    6,查看所有学生资料");
+		puts("\t    7,退出系统");
+		puts("\t**********************");
+		printf("想选择的功能");
+		scanf("%d,&choice");
+		if(choice<1||choice>8)
+		{
+			w1=1;
+			system("cls");
+			printf("菜单选择错误，请重新选择");
+		}
+		else w1=0;
+		
+		 
+	} while(w1==1);
+	switch(choice)//根据用户的菜单选择调用相应的函数
+	{
+		case 1:
+	    add();
+	    break;
+	    case 2:
+	    find();
+	    break;
+	    case 3:
+	    shanchu();
+	    break;
+	    case 4:
+		change();
+		break;
+		case 5:
+		tongji();
+		break;
+		case 6:
+		read();
+		break;
+		case 7:
+		break;
+		default:exit(0);
+	 } 
+ }
+ int load()
+ {
+ 	FILE *fp;
+ 	int i;
+ 	if((fp=fopen("results.txt","rb"))==NULL)
+ 	{
+ 		printf("文件打开错误");
+ 		return 0;
+	 }
+	 for(i=0;!feof(fp);i++)
+	 fread(&stu[i],sizeof(struct student),1,fp);
+	 fclose(fp);
+	 return (i-1);
+  } 
+  //保存函数
+  void save(int n)
+  {
+  	int i;
+  	FILE *fp;
+  	if((fp=fopen("results.txt","wb"))==NULL)
+  	{
+  		printf("文件打开错误");
+	  }
+	  for(i=0;i<n;i++)
+	  fwrite(&stu[i],sizeof(struct student),1,fp);
+	  
+  }
+  //读出函数 
+  void read()
+  {
+  	int n,m;
+  	n=load();
+  	printf("学号\t姓名\t性别\t年龄\t籍贯\t系别\t专业\t班级\t");
+  	for(m=0;m<n;m++)
+  	{
+  	 printf("\n%s",stu[m].no);
+  	 printf("\t%s",stu[m].name);
+  	 printf("\t%s",stu[m].sex);
+  	 printf("\t%d",stu[m].age);
+  	 printf("\t%s",stu[m].jiguan);
+  	 printf("\t%s",stu[m].xibie);
+  	 printf("\t%s",stu[m].zhuanye);
+  	 printf("\t%d",stu[m].ban);
+	  }
+{
+	int xz,choice;//选择返回还是退出系统的变量
+	do
+	{
+		printf("\n1-返回主菜单;2-退出系统\n");
+		scanf("%d",&choice);
+		if(choice<1||choice>2)
+		{
+			xz=1;
+			system("cls");
+			printf("输入错误，请重新选择\n");
+		}
+		else xz=0;
+	 } while(xz==1);
+	 switch(choice)
+	 {
+	 	 case 1:
+		  menu();
+		  break;//调用菜单函数
+		  case 2:
+		  exit(0);
+		  break;//退出系统 
+	 }
+}
+  }
+  //录入学生信息
+  void add()
+  {
+  	FILE *fp;
+  	int n,i,m;
+  	n=load();
+  	if((fp=fopen("results.txt","wb"))==NULL)
+  	{
+  		printf("文件打开错误\n");
+  		exit(0);
+  		
+	  }
+	  printf("你想录入多少个学生信息");
+	  scanf("%d",&m);
+	  for(i=0;i<m;i++)
+	  {
+	  	printf("\n学号:");
+	  	scanf("%sm",stu[n+i].no);
+	  	printf("姓名:");
+	  	scanf("%s",stu[n+i].name);
+	  	printf("性别:");
+	  	scanf("%s",stu[n+i].sex);
+	  	printf("年龄:");
+	  	scanf("%d",&stu[n+i].age);
+	  	printf("籍贯:");
+	  	scanf("%s",stu[n+i].jiguan);
+	  	printf("系别:");
+	  	scanf("%s",stu[n+i].xibie);
+	  	printf("专业:");
+	  	scanf("%s",stu[n+i].zhuanye);
+	  	printf("班级:");
+	  	scanf("%d",&stu[n+i].ban);
+	  	printf("输入完成");
+	  	save(n+m);
+	  }
+	  for(i=0;i<m;i++)
+	  fwrite(&stu[i],sizeof(struct student),1,fp);
+	  for(i=0;i<m;i++)
+	  fwrite(&stu[i],sizeof(struct student),1,fp);
+	  fclose(fp);
+	  {
+	  	int xz,choice;
+	  	do
+	  	{
+	  		printf("\n1-返回主菜单;2-退出系统\n");
+	  		scanf("%d",&choice);
+			  if(choice<1||choice>2)
+			  {
+			  	xz=1;
+			  	system("cls");
+			  	printf("输入错误,请重新输入\n");
+			   } 
+			   else xz=0;
+		}while(xz==1);
+			   switch(choice)
+			   {
+			   	case 1:
+			   	menu();
+			   	break;
+			   	case 2:
+			   	exit(0);
+			   	break;
+			   }
+		  }
+}
+		  
+	  
+   
+   //查找函数
+   void find()
+   {
+   	int menu();
+   	int n,i;
+   	char m[9];
+   	n=load();
+   	printf("\t\t欢迎使用学号查找功能\n请输入你需要查找的学生的学号:");
+   	scanf("%s",&m);
+   	for(i=0;i<n;i++)
+   	{
+   		if(!strcmp(stu[i].no,m))
+   		{
+   			printf("学号\t姓名\t性别\t年龄\t籍贯\t系别\t专业\t班级\n");
+   			printf("%s",stu[i].no);
+   			printf("\t%s",stu[i].name);
+   			printf("\t%s",stu[i].sex);
+   			printf("\t%d",stu[i].age);
+   			printf("\t%s",stu[i].jiguan);
+   			printf("\t%s",stu[i].xibie);
+   			printf("\t%s",stu[i].zhuanye);
+   			printf("\t%d\n",stu[i].ban);
+		   }
+	   }
+	   {
+	   	int xz,choice;
+	   	do
+	   	{
+	   		printf("\n1-返回主菜单;2-退出系统\n");
+	   		scanf("%d",&choice);
+	   		if(choice<1||choice>2)
+	   		{
+	   			xz=1;
+	   			system("cls");
+	   			printf("输入错误，请重新选择\n");
+	   			
+			   }
+			   else xz=0;
+			}while(xz==1);
+			switch(choice)
+			{
+				case 1:
+				menu();
+				break;
+				case 2:
+				exit(0);
+				break;
+			}
+	   }
+   }
+  //修改函数
+  void change()
+  {
+  	int n,i,j;
+  	char m[9];
+  	n=load();
+  	printf("欢迎使用修改功能\n输入你要修改学生的学号:");
+  	scanf("%s",&m);
+  	for(i=0;i<n;i++)
+  	{
+  		if(!strcmp(stu[i].no,m))
+  		{
+  			printf("你要修改的项目:\n1)学号2)姓名3)性别4）年龄5)籍贯6)系别7)专业8)班级\n");
+  			printf("你选择的功能是:");
+  			scanf("%d",&j);
+			 switch(j)
+			 {
+			 	case 1:
+			 	printf("输入你修改后的学号:");
+			 	scanf("%s",stu[i].no);
+			 	break;
+			 	case 2:
+			 	printf("输入你修改后的姓名:");
+			 	scanf("%s",stu[i].name);
+			 	break;
+			 	case 3:
+			 	printf("输入你修改后的性别:");
+			 	scanf("%s",stu[i].sex);
+			 	break;
+			 	case 4:
+			 	printf("输入你修改后的年龄:");
+			 	scanf("%d",&stu[i].age);
+			 	break;
+			 	case 5:
+			 	printf("输入你修改后的籍贯:");
+				 scanf("%s",stu[i].jiguan);
+				 break;
+				 case 6:
+				 printf("输入你修改后的系别:");
+				 scanf("%s",stu[i].xibie);
+				 break;
+				 case 7:
+				 printf("输入你修改后的专业:");
+				 scanf("%s",stu[i].zhuanye);
+				 break;
+				 case 8:
+				printf("输入你修改后的班级:");
+				scanf("%d",&stu[i].ban);
+				break;
+				default:
+				printf("选择的功能错误\n");
+				int getch();
+				change();
+				break;
+				 
+			
+			  } 
+			  save(n);
+		  }
+	  }
+   
+   {
+	
+   	int xz,choice;
+   	do
+   	{
+   		printf("\n1-返回主菜单;2-退出系统\n");
+		scanf("%d",&choice);
+		if(choice<1||choice>2)
+		{
+		xz=1;
+		system("cls");
+		printf("输入错误,请重新选择\n"); 
+		} 
+		else xz=0;
+	}while(xz==1);
+	switch(choice)
+	{
+	case 1:
+	menu();
+	break;
+	case 2:
+	exit(0);
+	break;
+	 }
+}
+}
+//统计函数
+void tongji()
+{
+	int k,i,n;
+	struct student t;
+	system("cls");
+	printf("学号   专业   籍贯\n");
+	for(k=0;k<n-1;k++)
+   {
+   	for(i=0;i<n-k-1;i++)
+   	{
+   	  if(stu[i].no>stu[i+1].no)
+   	  t=stu[i];
+   	  stu[i]=stu[i+1];
+   	  stu[i+1]=t;
+	   }
+   }
+   for(i=0;i<n;i++)
+   {
+   	if(stu[i].no!=0)
+   	printf("%s   %s   %s",stu[i].no,stu[i].zhuanye,stu[i].jiguan);
+   }
+   {
+   	int xz,choice;
+   	do
+   	{
+   		printf("\n1-返回菜单函数;2-退出系统\n");
+   		scanf("%d",&choice);
+   		if(choice<1||choice>2)
+   		{
+   			xz=1;
+   			system("cls");
+   			printf("输入错误,请重新选择\n");
+		   }
+		   else xz=0;
+	   }while(xz==1);
+	   switch(choice)
+	   {
+	   	case 1:
+	   	menu();
+	   	break;
+	   	case 2:
+	   	exit(0);
+	   	break;
+		    
+	   }
+   }
+   
+	
+ } 
+ //删除函数
+ void shanchu()
+ {
+ 	int n,i,j;
+ 	char m[9];
+ 	n=load();
+ 	printf("输入你要删除学生的学号");
+ 	scanf("%s",&m);
+ 	for(i=0;i<n;i++)
+ 	if(!strcmp(stu[i].no,m))
+ 	{
+ 	 for(j=0;j<n-1;j++)
+ 	 {
+ 	 	strcpy(stu[j].no,stu[j+1].no);
+ 	 	strcpy(stu[j].name,stu[j+1].name);
+ 	 	stu[j].age=stu[j+1].age;
+ 	 	strcpy(stu[j].jiguan,stu[j+1].jiguan);
+ 	 	strcpy(stu[j].xibie,stu[j+1].xibie);
+ 	 	strcpy(stu[j].zhuanye,stu[j+1].zhuanye);
+ 	 	strcpy(stu[j].sex,stu[j+1].sex);
+ 	 	stu[j].ban=stu[j+1].ban;
+	  }
+	  save(n-1);
+	 }
+	 {
+	 	int xz,choice;
+	 	do
+	 	{
+	 	 printf("\n1-返回主菜单;2-退出系统\n");
+	 	 scanf("%d",&choice);
+	 	 if(choice<1||choice>2)
+	 	 {
+	 	 	xz=1;system("cls");
+	 	 	printf("输入错误,请重新选择\n");
+		  }
+		  else xz=0;
+		  
+		  } while(xz==1);
+		  switch(choice)
+		  {
+		  	case 1:
+			 menu();
+			 break;
+			 case 2:
+			 exit(0);
+			 break; 
+		  }
+	 }
+  } 
+ int main()
+ {
+ 	menu();
+ }
+
+
+