设计通讯录管理系统 可以添加,删除,修改信息和查询的功能。并保存...

发布网友 发布时间：2024-10-24 12:56

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热心网友 时间：2024-10-31 11:12

#include"stdio.h"
#include"stdlib.h"
#include"string.h"
struct student
{
int no; /*学号*/
char name[20]; /*姓名*/
char acdamic[20]; /*院系*/
char major[20]; /*专业*/
char province[20]; /*籍贯*/
char address[40]; /*家庭地址*/
long phone; /*联系电话*/
struct student *next;
};
struct student *input();
void print(struct student *h);
struct student *insert(struct student *h);
struct student *del(struct student *h);
void find4(struct student *h);
void find3(struct student *h);
void find2(struct student *h);
void find1(struct student *h);
struct student *head=NULL;
char ch,*menu[]={"------------------通讯录菜单------------",
"1.----------建立学生通讯录---------------",
"2.----------输出全部学生通讯录---------------",
"3.----------增加的学生的个数---------------",
"4.----------删除指定学号的学生--------------",
"5.----------按系别查找学生信息-------------",
"6.----------按专业查找学生信息-------------",
"7.----------按姓名查找学生信息-------------",
"8.----------按学号查找学生信息--------------",
"9.----------退出通讯录-----------------------"};
struct student *input() /*输入函数*/
{
int n;
printf("请输入你要建立的学生通讯录的学生个数:\n");
scanf("%d",&n);
struct student *h=NULL,*p,*q;
int i;
for(i=1;i<=n;i++)
{
printf("请依次输入第%d个学生的学号，姓名，系别，专业，籍贯，家庭住址和联系电话:\n",i);
p=(struct student *)malloc(sizeof(struct student));
if(p==NULL)
{
printf("内存不足！\n");
exit(0);
}
scanf("%d%s%s%s%s%s%ld",&p->no,p->name,p->acdamic,p->major,p->province,p->address,&p->phone);
if(i==1)h=p;
else q->next=p;
q=p;
}
q->next=NULL;
return h;
}
void print(struct student *h) /*输出函数*/
{
struct student *p=h;
while(p)
{
printf("学生信息:\n%d,%s,%s,%s,%s,%s,%ld\n",p->no,p->name,p->acdamic,p->major,p->province,p->address,p->phone);
p=p->next;
}
}
struct student *insert(struct student *h) /*增加学生信息*/
{
int n;
printf("请输入你要增加的学生的个数:\n");
scanf("%d",&n);
struct student *p,*r;
int i;
for(i=1;i<=n;i++)
{
r=(struct student *)malloc(sizeof(struct student));
printf("请输入第%d个你要插入的学生的信息:\n",i);
scanf("%d%s%s%s%s%s%ld",&r->no,r->name,r->acdamic,r->major,r->province,r->address,&r->phone);
p=h;
h=r;
r->next=p;
}
return h;
}
struct student *del(struct student *h) /*按学号进行删除*/
{
int n;
printf("请输入要删除的学生的学号:\n");
scanf("%d",&n);
struct student *p,*q;
if(h=NULL)printf("empty list!\n");
else
{
p=h;
while(p->no!=n&&p->next)
{q=p;p=p->next;}
if(p->no==n)
{
if(h==p)h=p->next;
else q->next=p->next;
}
else printf("%d is not found!\n");
}
return h;
}
void find1(struct student *h) /*按院系查找学生信息*/
{
char s[40];
printf("请输入要查找的学生的院系:\n");
scanf("%s",s);
struct student *p;
if(h==NULL)printf("empty list!\n");
else
{
p=h;
while(p)
{
if(strcmp(p->acdamic,s)==0)
printf("学生信息:\n%d %s %s %s %s %s %ld\n",p->no,p->name,p->acdamic,p->major,p->province,p->address,p->phone);
p=p->next;
}
}
}
void find2(struct student *h) /*按专业查找*/
{
char s[20];
printf("请输入要查找的学生的专业名:\n");
scanf("%s",s);
struct student *p;
if(h==NULL)printf("empty list!\n");
else
{
p=h;
while(p)
{
if(strcmp(p->major,s)==0)
printf("学生信息:\n%d %s %s %s %s %s %ld\n",p->no,p->name,p->acdamic,p->major,p->province,p->address,p->phone);
p=p->next;
}
}
}
void find3(struct student *h) /*按姓名查找*/
{ char ss[10];
printf("请输入要查找的学生的姓名:\n");
scanf("%s",ss);
struct student *p;
if(h==NULL)printf("empty list!\n");
else
{
p=h;
while(p)
{
if(strcmp(p->name,ss)==0)
printf("学生信息:\n%d %s %s %s %s %s %ld\n",p->no,p->name,p->acdamic,p->major,p->province,p->address,p->phone);
p=p->next;
}
}
}
void find4(struct student *h) /*按学号查找*/
{
int num;
printf("请输入要查找的学生的学号:\n");
scanf("%d",&num);
struct student *p;
if(h==NULL)printf("empty list!\n");
else
{
p=h;
while(p)
{
if(p->no==num)
printf("学生信息:\n%d %s %s %s %s %s %ld\n",p->no,p->name,p->acdamic,p->major,p->province,p->address,p->phone);
else
printf("没有你要查找的学生信息！\n");
p=p->next;
}
}
}
int menu_select()
{
int i,s;
char c[3];
for(i=0;i<10;i++)
printf("%s\n",menu[i]);
do
{
scanf("%s",c);
s=atoi(c);
}while(s<0||s>9);
return s;
}
main()
{
for(;;)
{
switch(menu_select())
{
case 1:head=input();break;
case 2:print(head);break;
case 3:head=insert(head);break;
case 4:head=del(head);break;
case 5:find1(head);break;
case 6:find2(head);break;
case 7:find3(head);break;
case 8:find4(head);break;
case 9:exit(0);
}
}
} 一一，错的地方自己改哈。。。。。。呵呵.........没人回答，太可怜了。