通讯录问题执行到一半停止工作帮忙看看什么问题？
程序代码：#include<stdio.h>
#include<stdlib.h>
#include<string.h>
int n=4;
struct person
{
int number;
char name[10];
char sex;
int telephone;
int QQ;
int hometele; //家庭电话
char email;
char address[30]; //通讯地址
struct
{
unsigned short year;
unsigned short month;
unsigned short day;
} birthday; //出生日期
struct person*last;
struct person*next;
};
struct person*head=NULL;
struct person*p;
int k;
void create(struct person*head)
{
int i=0;
p=(person*)malloc(sizeof(struct person));
if(p=NULL)
{
printf("申请内存不成功！");
free(p);
return ;
}
else
{ printf("\n\n======================================================================\n\n");
printf("\t\t请输入以下信息：");
for(i=1;i<n;i++)
{
printf("\n\t\t第%d位同学的姓名：",i);
scanf("%s",&(p->name));
printf("\t\t第%d位同学的性别：",i);
scanf("%s",&(p->sex));
printf("\t\t第%d位同学的电话号码：",i);
scanf("%d",&(p->telephone));
printf("\t\t第%d位同学的QQ：",i);
scanf("%d",&(p->QQ));
printf("\t\t第%d同学的家庭号码：",i);
scanf("%d",&(p->hometele));
printf("\t\t第%d位同学的电子邮件：",i);
scanf("%s",&(p->address));
printf("\t\t第%d位同学的出生日期：",i);
scanf("%d/%d/%d",&(p->birthday.year),&(p->birthday.month),&(p->birthday.day));
p=p->next;
}
p->next=NULL;
printf("\n\n===========================================");
printf("\n\n\t\t信息记录保存成功！");
return ;
}
}
void print(struct person*head)
{
printf("\n\n\t\t%-9s%-9s%-9s%-9s%-9s%-9s%-9s%-9s%-9s\n","学号","姓名","性别","电话号码","QQ号码","家庭电话","电子邮件","通讯地址","出生日期");
if(p!=NULL)
{
printf("\t\t%d\t\t\t %-6s%-3s",p->number,p->name,p->sex);
printf("\t\t%d\t\t\t%d\t\t\t%d",p->telephone,p->QQ,p->hometele);
printf("%-9s%-9s",p->email,p->address);
printf("\t\t%d/%d/%d\n",p->birthday.year,p->birthday.month,p->birthday.day);
p=p->next;
}
else
{
printf("\n\n\t\t目前此通讯录无任何记录！按任意键返回主菜单···");
scanf("%",&k);
return ;
}
}
//查找信息
void seek(struct person*head)
{
char name[10];
if(p==NULL)
{ printf("\n\n\t\t此通讯录暂无任何信息！按任意键返回主菜单···");
scanf("%d",&k);
}
else
{ printf("\t\t请输入需查找的人名：");
scanf("%s",&name);
while(p!=NULL)
{
if(strcmp(p->name,name)==0)
{
printf("\n\n\t\t%s的信息如下：",&name);
printf("\n=======================================================================================================");
printf("\n\n\t\t%-9s%-9s%-9s%-9s%-9s%-9s%-9s%-9s%-9s\n","学号","姓名","性别","电话号码","QQ号码","家庭电话","电子邮件","通讯地址","出生日期");
printf("\t\t%d\t\t\t %-6s%-3s",p->number,p->name,p->sex);
printf("\t\t%d\t\t\t%d\t\t\t%d",p->telephone,p->QQ,p->hometele);
printf("%-9s%-9s",p->email,p->address);
printf("\t\t%d/%d/%d\n",p->birthday.year,p->birthday.month,p->birthday.day);
printf("\t\t请按任意键返回主菜单····\n");
scanf("%d",&k);
return ;
}
p=p->next;
}
printf("\n\n\t\t你所输入的姓名有误或不存在！请按任意键返回主菜单····");
scanf("%d",&k);
return ;
}
}
//添加信息
void add(struct person*head)
{
struct person*h; //追加的节点
struct person*f; //中间变量
h=(struct person*)malloc(sizeof(struct person));
if(p==NULL) //需创建链表
{
p=h;
p->next=NULL;
head->next=p;
}
else //说明需找到链表结束位置
{
f=p;
while(f->next!=NULL)
{
f=f->next;
}
f->next=h;
h->last=f;
h->next=NULL;
}
printf("\t\t请输入学号：");
scanf("%d",h->number);
printf("\t\t请输入姓名：");
gets(h->name);
printf("\t\t请输入性别：");
scanf("%s",&(h->sex));
printf("\t\t请输入电话号码：");
scanf("%d",&(h->telephone));
printf("\t\t请输入QQ号：");
scanf("%d",&(h->QQ));
printf("\t\t请输入家庭电话：");
scanf("%d",&(h->hometele));
printf("\t\t请输入电子邮件：");
scanf("%s",&(h->email));
printf("\t\t请输入通讯地址：");
gets(h->address);
printf("\t\t添加成功！按任意键返回主菜单···");
scanf("%d",&k);
return ;
}
//删除信息
void dele(struct person*p)
{
char name[10];
char d;
if(p==NULL)
{ printf("\n\n\t\t通讯录目前无任何信息，无法执行删除！按任意键返回主菜单···");
scanf("%d",&k);
return ;
}
else
{
printf("请输入需删除信息的人名：");
scanf("%s",&name);
if(strcmp(p->name,name)==0)
{
printf("\n\t\t你确定要删除%s的信息（y/n）?",p->name);
d=getchar();
if(d=='N'||d=='n')
{
printf("\n\t\t你选择了取消删除，请按任意键返回主菜单···");
scanf("%d",&k);
return ;
}
else //确认删除
{ //重建链表关系
(p->last)->next=p->next;
(p->next)->last=p->last;
}
free(p);
printf("\n\t\t信息删除成功！按任意键返回主菜单···");
scanf("%d",&k);
return ;
}
p=p->next;
}
}
//修改信息
void modify(struct person*head)
{
char name[10];
int m;
printf("\n\t\t请输入需修改信息的人名字：");
scanf("%s",&name);
while(p!=NULL)
{
if(strcmp(p->name,name)==0)
{
printf("\n\n\t\t%-9s%-9s%-9s%-9s%-9s%-9s%-9s%-9s%-9s\n","学号","姓名","性别","电话号码","QQ号码","家庭电话","电子邮件","通讯地址","出生日期");
printf("\t\t%d\t\t\t %-6s%-3s",p->number,p->name,p->sex);
printf("\t\t%d\t\t\t%d\t\t\t%d",p->telephone,p->QQ,p->hometele);
printf("%-9s%-9s",p->email,p->address);
printf("\t\t%d/%d/%d\n",p->birthday.year,p->birthday.month,p->birthday.day);
printf("\n\n\t\t请选择需修改的信息项：");
printf("\n\t\ta----学号");
printf("\n\t\tb----性别");
printf("\n\t\tc----电话号码");
printf("\n\t\td----QQ号码");
printf("\n\t\te----家庭电话");
printf("\n\t\tf----电子邮件");
printf("\n\t\tg----通讯地址");
printf("\nt\\th----出生日期");
printf("\t\t请选择：");
m=getchar();
switch(m)
{
case 'a':printf("\n\t\t请输入新的学号：");
scanf("%d",&(p->number));break;
case 'b':printf("\n\t\t请输入新的性别：");
scanf("%s",&(p->sex));break;
case 'c':printf("\n\t\t请输入新的电话号码：");
scanf("%d",&(p->telephone));break;
case 'd':printf("\n\t\t请输入新的QQ号码：");
scanf("%d",&(p->QQ));break;
case 'e':printf("\n\t\t请输入新的家庭电话：");
scanf("%d",&(p->hometele));break;
case 'f':printf("\n\t\t请输入新的电子邮件：");
scanf("%s",&(p->email));break;
case 'g':printf("\n\t\t请输入新的通讯地址：");
scanf("%s",&(p->address));break;
default :printf("\n\t\t选择错误，请重新选择：");
getchar();
}
printf("\nt\t\t修改成功！请按任意键返回主菜单···");
scanf("%d",&k);
return ;
}
p=p->next;
}
printf("\n\t\t你所输入的人名有误或不存在！按任意键返回主菜单···");
scanf("%d",&k);
return ;
}
void main()
{
int k;
printf("\n\n\t\t========================================");
printf("\n\n\t\t\t=***欢迎使用本通讯录管理系统***=\n\n\n");
printf("\t\t请选择：(1-7）：\n");
printf("\t\t**********************************************\n");
printf("\t\t\t1.建立通讯录\n");
printf("\t\t\t2.浏览通讯录信息\n");
printf("\t\t\t3.查找通讯录信息\n");
printf("\t\t\t4.添加通讯录信息\n");
printf("\t\t\t5.删除通讯录信息\n");
printf("\t\t\t6.修改通讯录信息\n");
printf("\t\t\t7.退出系统\n");
printf("\n\t\t*********************************************\n");
printf("\n\t\t你的选择是：");
scanf("%d",&k);
switch(k)
{
case 1:create(head);break;
case 2:print(head);break;
case 3:seek(head);break;;
case 4:add(head);break;
case 5:dele(head);break;
case 6:modify(head);break;
case 7:return;
default:printf("\t\t选择错误！请重新选择：");
scanf("%d",&k);
}
return ;
}
为什么每次执行到这里都停止工作？是因为没有用到文件吗？帮忙看看什么问题？谢谢[ 本帖最后由 cyuyan793445 于 2013-3-6 15:15 编辑 ]
