#include <stdio.h>
#include <string.h>
#include <malloc.h>
void Gain(int t);
void Insert();
void Del();
void Change();
void Seek();
void All();
int List();
typedef struct dzzz{
int num;
char name[12];
int zw;
}DATA;
struct node{
DATA data;
struct node *next;
}*head,*tail;
int main(){
int t,x;
printf("请输入学生数目：\n");
scanf("%d",&t);
Gain(t);
while(1){
x=List();
if(x==1)
Insert();
else if(x==2)
Seek();
else if(x==3)
Del();
else if(x==4)
Change();
else if(x==5)
All();
else
break;
}
return 0;
}
void Gain(int t){
head=(struct node*)malloc(sizeof(struct node));
tail =head;
head->next=NULL;
while(t--){
tail=tail->next;
printf("第%d名同学的学号 名字 座号为：\n");
scanf("%d%s%d",&tail->data.num,tail->data.name,&tail->data.zw);
}
tail->next=NULL;
tail=head;
}
void Insert(){
struct node *s,*p;
int j=0;
p=head;
printf("请输入学号 姓名 座号：\n");
scanf("%d%s%d",&s->data.num,s->data.name,&s->data.zw);
while(j<s->data.num-1&&p!=NULL){
p=p->next;
j++;
}
if(p==NULL){
printf("无法插入数据！\n");
}else{
s->next=p->next;
p->next=s;
printf("数据插入成功！\n");
}
}
void Del(){
struct node *h,*p;
int j=0;
printf("请输入要删除的数据：\n");
p=head;
scanf("%d%s%d",&h->data.num,h->data.name,&h->data.zw);
while(j<h->data.num-1&&p!=NULL){
p=p->next;
j++;
}
if(h==NULL)
printf("无法删除数据！\n");
else
p->next=p->next->next;
}
void Change(){
struct node *p,*y;
int t=0;
p=head;
printf("请输入您要更改的信息：学号，姓名，座号\n");
scanf("%d%s%d",&y->data.num,y->data.name,&y->data.zw);
while(t<y->data.num-1&&p!=NULL){
p=p->next;
t++;
}
y->next=p->next->next;
p->next=y;
printf("修改成功！\n");
}
void Seek(){
int x;
char t;
int numm;
char xmm[12];
struct node *p;
p=head->next;
printf("请输入1.姓名或2.学号：\n");
while(1){
scanf("%d",&x);
if(x==1){
scanf("%s",xmm);
while(strcmp(xmm,p->data.name)!=0){
p=p->next;
}
printf("%d,%s,%d\n",p->data.num,p->data.name,p->data.zw);
}else if(x==2){
scanf("%d",&numm);
while(numm!=p->data.num){
p=p->next;
}
printf("%d,%s,%d\n",p->data.num,p->data.name,p->data.zw);
}else
printf("输入错误！\n");
printf("结束输入时请输入:N/n\n");
scanf("%c",&t);
if(t=='n'||t=='N')
break;
}
}
void All(){
struct node *p;
p=head;
while(p!=NULL){
p=p->next;
printf("学号：%d 姓名：%s 座号：%d\n",p->data.num,p->data.name,p->data.zw);
}
}
int List(){
int t;
printf(" --------------------------|----------------|--------------------------\n");
printf(" --------------------------|学生宿舍管理系统|--------------------------\n");
printf(" --------------------------|----------------|--------------------------\n");
printf(" ----------------------------1.插入学生信息----------------------------\n");
printf(" ----------------------------2.查询学生信息----------------------------\n");
printf(" ----------------------------3.删除学生信息----------------------------\n");
printf(" ----------------------------4.更改学生信息----------------------------\n");
printf(" ----------------------------5.查看全部信息----------------------------\n");
printf("请输入序号：\n");
while(1){
scanf("%d",&t);
if(t>6||t<1)
printf("请重新输入\n");
else
break;
}
return t;
}
感激不尽 ！
