#include<stdio.h>
#include<stdlib.h>
#include<conio.h>
#include<string.h>
#include<io.h>
struct birth
{
	int year,month,day;
};
struct student
{
	int number,age,tel[20];
	char name[10],sex,address[20];
	char E_mail[20];
	struct birth birthday;
	struct student *link;
};
void show()
{
	printf("请输入数字加回车键进行选择:\n");
	printf("1.学生信息录入功能(学生信息用文件保存)-输入\n");
	printf("2.学生信息浏览功能-输出\n");
	printf("3.学生信息查询功能-按学号查询,按姓名查询\n");
	printf("4.学生信息的删除与修改\n");
	printf("按其他任意键加回车退出程序\n");
}
void credit(int n)
{
	FILE *fp;
	char fpname[20];
	struct student *head,*next,*end;
	int i;
	printf("请输入用于存放文件的路径及路径名:");
	scanf("%s",fpname);
	getchar();
	fp=fopen(fpname,"w+");
	head=(struct student *)malloc(sizeof(struct student));
	printf("请输入学生学号 姓名 性别 出生年 月 日 地址 电话 e_mail:");
	scanf("%d %s %c %d %d %d %s %s %s",&head->number,&head->name,&head->sex,&(*head).birthday.year,&(*head).birthday.month,&(*head).birthday.day,head->address,head->tel,head->E_mail);
	getchar();
	fprintf(fp,"%d %s %c %d %d %d %s %s %s",&head->number,&head->name,&head->sex,&(*head).birthday.year,&(*head).birthday.month,&(*head).birthday.day,head->address,head->tel,head->E_mail);
	end=head;
	for(i=0;i<n;i++)
	{
		next=(struct student *)malloc(sizeof(struct student));
		printf("请输入学生学号 姓名 性别 出生年 月 日 地址 电话 e-mail:");
		scanf("%d %s %c %d %d %d %s %s %s",&head->number,&head->name,&head->sex,&(*head).birthday.year,&(*head).birthday.month,&(*head).birthday.day,head->address,head->tel,head->E_mail);
		getchar();
		fprintf(fp,"%d %s %c %d %d %d %s %s %s",&head->number,&head->name,&head->sex,&(*head).birthday.year,&(*head).birthday.month,&(*head).birthday.day,head->address,head->tel,head->E_mail);
		end->link=next;
		end=next;
		end->link=NULL;
	}
	fclose(fp);
}
int show2(int n)
{

	FILE *fp;
	int i;
	char fpname[20];
	struct student *head;
	head=(struct student *)malloc(sizeof(struct student));
	printf("请输入用于存放信息的文件路径及文件名:");
	gets(fpname);
	fp=fopen(fpname,"r+");
	for(i=0;i<n;i++)
	{
		fscanf(fp,"%d %s %c %d %d %d %s %s %s",&head->number,&head->name,&head->sex,&(*head).birthday.year,&(*head).birthday.month,&(*head).birthday.day,head->address,head->tel,head->E_mail);
		printf("%d %s %c %d %d %d %s %s %s",&head->number,&head->name,&head->sex,&(*head).birthday.year,&(*head).birthday.month,&(*head).birthday.day,head->address,head->tel,head->E_mail);
		fclose(fp);
	}
}
int search1(int n)
{	
int i,checkname;
FILE *fp;
char fpname[20];
struct student *head;
head=(struct student *)malloc(sizeof(struct student));
printf("请输入存放信息的文件路径及文件名:");
gets(fpname);
fp=fopen(fpname,"r+");
printf("请输入要查询信息的学生学号:");
scanf("%d",&checkname);
getchar();
for(i=0;i<n;i++)
{
	fscanf(fp,"%d %s %c %d %d %d %s %s %s",&head->number,&head->name,&head->sex,&(*head).birthday.year,&(*head).birthday.month,&(*head).birthday.day,head->address,head->tel,head->E_mail);
	if(checkname==head->number)
	{
		printf("%d %s %c %d %d %d %s %s %s\n",&head->number,&head->name,&head->sex,&(*head).birthday.year,&(*head).birthday.month,&(*head).birthday.day,head->address,head->tel,head->E_mail);
		fclose(fp);
		return(1);	
	}
}
   printf("未找到");
}
int search2(int n)
{
	int i;
	FILE *fp;
	char fpname[20],checkname[20];
	struct student *head;
	head=(struct student *)malloc(sizeof(struct student));
	printf("请输入存放信息的文件路径及文件名:");
    gets(fpname);
    fp=fopen(fpname,"r+");
    printf("请输入要查询信息的学生姓名:");
    scanf("%s",&checkname);
    for(i=0;i<n;i++)
   {
	fscanf(fp,"%d %s %c %d %d %d %s %s %s",&head->number,&head->name,&head->sex,&(*head).birthday.year,&(*head).birthday.month,&(*head).birthday.day,head->address,head->tel,head->E_mail);
	if(strcmp(checkname,head->name)==0)
	{
		for(i=0;i<n;i++)
	    fprintf(fp,"%d %s %c %d %d %d %s %s %s",&head->number,&head->name,&head->sex,&(*head).birthday.year,&(*head).birthday.month,&(*head).birthday.day,head->address,head->tel,head->E_mail);
	    fclose(fp);
	    return(1);
	}
  }
    printf("未找到\n");
}
int most(n)
{
	FILE *fp;
	char get;
	char fpname[20];
	struct student *ans[500];
	int i;
	char checkname[10];
	printf("请输入存放信息的文件路径及文件名:");
	gets(fpname);
	fp=fopen(fpname,"r+");
	ans[0]=(struct student *)malloc(sizeof(struct student));
	fscanf(fp,"%d %s %c %d %d %d %s %s %s",&ans[0]->number,&ans[0]->name,&ans[0]->sex,&(*ans[0]).birthday.year,&(*ans[0]).birthday.month,&(*ans[0]).birthday.day,ans[0]->address,ans[0]->tel,ans[0]->E_mail);
	for(i=0;i<n;i++)
	{
		ans[i]=(struct student *)malloc(sizeof(struct student));
		fscanf(fp,"%d %s %c %d %d %d %s %s %s",&ans[i]->number,&ans[i]->name,&ans[i]->sex,&(*ans[i]).birthday.year,&(*ans[i]).birthday.month,&(*ans[i]).birthday.day,ans[i]->address,ans[i]->tel,ans[i]->E_mail);
		ans[i-1]->link=ans[i];
	}
	ans[i]->link=NULL;
	printf("如果想修改信息请输入1加回车键，想删除信息输入2加回车键:");
	get=getchar();
	getchar();
	if(get=='1')
	{
		printf("请输入要修改信息的学生姓名:");
		scanf("%s",checkname);
		getchar();
		for(i=0;i<n;i++)
		{
			if(strcmp(checkname,ans[i]->name)==0)
			{
				printf("请输入学生新信息 学号 姓名 性别 出生年 月 日 地址 电话 e-mail:");
				scanf("%d %s %c %d %d %d %s %s %s",&ans[i]->number,&ans[i]->name,&ans[i]->sex,&(*ans[i]).birthday.year,&(*ans[i]).birthday.month,&(*ans[i]).birthday.day,ans[i]->address,ans[i]->tel,ans[i]->E_mail);
				getchar();
			}
		}
	}
	if(get=='2')
	{
		printf("请输入要删除的学生姓名:");
		scanf("%s",checkname);
		getchar();
	    for(i=0;i<n;i++)
	    {
	    	if(strcmp(checkname,ans[i]->name)==0)
	    	{
	    		ans[i-1]->link=ans[i]->link;
	    		n--;
	    		break;
	    	}
	    }
	}
	fp=fopen(fpname,"w+");
	for(i=0;i<n;i++)
	{
		fprintf(fp,"%d %s %c %d %d %d %s %s %s",&ans[i]->number,&ans[i]->name,&ans[i]->sex,&(*ans[i]).birthday.year,&(*ans[i]).birthday.month,&(*ans[i]).birthday.day,ans[i]->address,ans[i]->tel,ans[i]->E_mail);
	}
	fclose(fp);
	return(n);
}
void main ()
{
	char get,get2;
	int n;
	while(1)
	{
		show();
		get=getchar();
		getchar();
		switch(get)
		{
			case '1':
				printf("请输入学生人数:");
				scanf("%d",&n);
				getchar();
				credit(n);
				break;
			case '2':
				show2(n);
				break;
			case '3':
				printf("按学号查找输入1加回车键，按姓名查找输入2加回车键:");
				get2=getchar();
				getchar();
				if(get2=='1')
				search1(n);
				if(get2=='2')
				search2(n);
				break;
			case '4':
			    n=most(n);
				break;	
		}
		if(get!='1'&&get!='2'&&get!='3'&&get!='4')
		        break;
	}
}