许志茹 （宿舍管理系统 没有弄菜单）

[xzr912]

#include<stdio.h>
#include<stdlib.h>
struct Stu{
	char name[20];
	int id;
	int age;
	char sex;
	int dor_num;
	int bed_num;
	struct Stu *next;
};
int count = 0;
struct Stu *creat()
{
	struct Stu *head = NULL,*end,*pnew;
	
	printf("请输入学号、姓名、年龄、性别、宿舍号、床入号(以0结录束):\n");
	pnew = (struct Stu*)malloc(sizeof(struct Stu));
	scanf("%d",&pnew->id);
	scanf("%s",&pnew->name);
	scanf("%d",&pnew->age);
	scanf("%c",&pnew->sex);
	scanf("%d",&pnew->dor_num);
	scanf("%d",&pnew->bed_num);
	getchar();
	while(pnew->id != 0)
	{
		count ++;
		if(1 == count)
		{
			pnew->next = head;
			head = pnew;
			end = pnew;
		}
		else
		{
			end->next = pnew;
			end = pnew;
		}
		pnew = (struct Stu*)malloc(sizeof(struct Stu));
		scanf("%d%s%d%c%d%d",&pnew->id,&pnew->name,&pnew->age,&pnew->sex,&pnew->dor_num,&pnew->bed_num);
		getchar();
		getchar();
	}
	end->next = NULL;
	free(pnew);
	return head;
}
void print(struct Stu *head)
{
	struct Stu *p;
	p = head;
	while(p != NULL)
	{
		printf("姓名:%s ",p->name);
		printf("学号:%d ",p->id);
		printf("年龄:%d ",p->age);
		printf("性别:%c ",p->sex);
		printf("宿舍号:%d ",p->dor_num);
		printf("床号:%d\n",p->bed_num);
		p = p->next;
	}
}
void inq(struct Stu *head)
{
	struct Stu *p;
	int num;
	p = head;
	printf("请输入要查询的学号:\n");
	scanf("%d",&num);
	while(p != NULL)
	{
		if(p->id == num)
		{
			printf("姓名:%s ",p->name);
			printf("学号:%d ",p->id);
			printf("年龄:%d ",p->age);
			printf("性别:%c ",p->sex);
			printf("宿舍号:%d ",p->dor_num);
			printf("床号:%d\n",p->bed_num);
			break;
		}
		else
			p = p->next;
	}
}
struct Stu *insert(struct Stu *head,struct Stu *p)
{
	struct Stu *pt,*p1;
	pt = head;
	if(head == NULL)
	{
			head = p;
			p->next = NULL;
	}
	else
	{
		while((pt->id < p->id) && (pt->next != NULL))
		{
			p1 = pt;
			pt = pt->next;
		}
			if(pt->id >= p->id)
			{
				if(pt == head)
				{
					p->next = head;
					head = p;
				}
				else
				{
					p1->next = p;
					p->next = pt;
				}
			}
		else
			{
			pt->next = p;
			p->next = NULL;
			}
		count++;
	}
	return head;
}
struct Stu *del(struct Stu *head)
{
	struct Stu *p2=NULL,*p1=NULL;
	int num;
	printf("请输入要删除学生的学号:\n");
	scanf("%d",&num);
	p2 = head;
	if(head == NULL)
	{
		printf("空链表\n");
		return (head);
	}
	else
	{
		while((p2->id != num) && (p2->next != NULL))
		{
			p1 = p2;
			p2= p2->next;
		}
		if(p2->id == num)
		{
			if(p2 == head)
			{
				head = p2->next;
			}
			else
			{
				p1->next = p2->next ;
			}
		}
		count--;
	}
	return head;
}
void sto(struct Stu *head)
{
	FILE *fp;
	if((fp=fopen("D:\\dormitory.dat","w")) == NULL)
	{
		printf("打开文件失败\n");
		exit(0);
	}
	fwrite(head,sizeof(struct Stu),count,fp);
	printf("成功写入\n");
}
int main()
{
	struct Stu *pt,*p;
	pt = creat();
	printf("请输入要插入学生的信息:\n");
	p=(struct Stu*)malloc(sizeof(struct Stu));
	scanf("%d",&p->id);
	scanf("%s",&p->name);
	scanf("%d",&p->age);
	scanf("%c",&p->sex);
	scanf("%d",&p->dor_num);
	scanf("%d",&p->bed_num);
	getchar();
	pt = insert(pt,p);
	pt = del(pt);
	inq(pt);
	print(pt);
	sto(pt);
	system("pause");
	return 0;
}

[wmpscc]

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