Question

通讯录代码 C语言 跪求

通讯录太难搞了 跪求C语言高手帮下忙（请不要很高端的那种 也不要百度弄的 最好自己编写 大一的水准的那种）做成这样就可以 谢谢各位了

Answer 1

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>
#define N 100 void input();//添加新用户函数
void amend();//修改用户信息函数
void delete_client();//删除用户信息函数
void demand_client();//用户信息查询函数
void collect_telephone();//用户信息汇总函数
void save_client(struct telephone message);//保存函数
void demand_name();//按用户名查询
void demand_telephone();//按电话号码查询

struct telephone
{
char client_name[20];
char client_address[30];
char client_telephone[15];
}; //添加新用户函数
void input()
{
struct telephone message;
char reply='y';
char save='y';
while (reply=='y')
{ printf("用户姓名：");
scanf("%s",message.client_name);

printf("电话号码：");
scanf("%s",message.client_telephone); save_client(message);

printf("要继续吗?(y/n):");
scanf(" %c",&reply);
}
printf("按任意键返回主菜单……\n");
getchar();
getchar();
} //保存函数
void save_client(struct telephone message)
{
FILE *fp;
fp=fopen("message.dat","a+");
if (fp!=NULL)
{
fwrite(&message,sizeof(struct telephone),1,fp);
}
else
{
printf("\n打开文件时出现错误，按任意键返回……\n");
getchar();
return;
}
fclose(fp);
} //修改用户信息函数
void amend()
{
struct telephone message;
FILE *fp;
char amend_name[20];
char reply='y';
char found='y';
char save='y';
int size=sizeof(struct telephone);
while (reply=='y')
{
found='n';
fp=fopen("message.dat","r+w");
if (fp!=NULL)
{
system("cls");
printf("\n请输入要修改的姓名：");
scanf("%s",amend_name);
while ((fread(&message,size,1,fp))==1)
{
if ((strcmp(amend_name,message.client_name))==0)
{
found='y';
break;
}
}
if (found=='y')
{ printf("==========================================\n");
printf("\n用户姓名:%s\n",message.client_name);

printf("\n电话号码:%s\n",message.client_telephone);
printf("==========================================\n");
printf("修改用户信息：\n");
printf("\n用户姓名：");
scanf("%s",message.client_name); printf("\n电话号码：");
scanf("%s",message.client_telephone);
printf("\n要保存吗?(y/n):");
scanf(" %c",&save);
if (save=='y')
{
fseek(fp,-size,1);
fwrite(&message,sizeof(struct telephone),1,fp);
}
}
else
{
printf("无此人信息!\n");
}
}
else
{
printf("打开文件时出现错误，按任意键返回……\n");
getchar();
return;
}
fclose(fp);
printf("要继续吗?(y/n):");
scanf(" %c",&reply);
}
printf("按任意键返回主菜单……\n");
getchar();
getchar();
} //删除用户信息函数
void delete_client()
{
struct telephone message[N];
struct telephone temp_str;
struct telephone delete_str;
int i=0,j=0;
char reply='y';
char found='y';
char confirm='y';
char delete_name[20];
FILE *fp;
while (reply=='y')
{
system("cls");
fp=fopen("message.dat","r");
if (fp!=NULL)
{
i=0;
found='n';
printf("\n请输入姓名：");
scanf("%s",delete_name);
while ((fread(&temp_str,sizeof(struct telephone),1,fp))==1)
{
if ((strcmp(delete_name,temp_str.client_name))==0)
{
found='y';
delete_str=temp_str;
}//查找要删除的记录
else
{
message[i]=temp_str;
i++;
}//将其它无关记录保存起来
}
}
else
{
printf("打开文件时出现错误，按任意键返回……\n");
getchar();
return;
}
fclose(fp);
if (found=='y')
{
printf("==========================================\n");
printf("用户姓名:%s\n",delete_str.client_name);

printf("电话号码:%s\n",delete_str.client_telephone);
printf("==========================================\n");
}
else
{
printf("无此人信息，按任意键返回……\n");
getchar();
break;
}
printf("确定要删除吗?(y/n):");
scanf(" %c",&confirm);
if (confirm=='y')
{
fp=fopen("message.dat","w");
if (fp!=NULL)
{
for(j=0;j<i;j++)
{
fwrite(&message[j],sizeof(struct telephone),1,fp);
}
printf("记录已删除!!!\n");
}
else
{
printf("打开文件时出现错误，按任意键返回……\n");
getchar();
return;
}
fclose(fp);
}
printf("要继续吗?(y/n):");
scanf(" %c",&reply);
}
printf("按任意键返回主菜单……\n");
getchar();
}
//用户信息查询函数
void demand_client()
{
int choice=1;
while (choice!=3)
{
system("cls");
printf("电话查询菜单\n");
printf(" 1 按联系人姓名查询\n");
printf(" 2 按联系人电话号码查询\n");
printf(" 3 返回主菜单\n");
printf("请选择(1-3):");
scanf("%d%*c",&choice);
if (choice>3)
{
printf("请输入1-6之间的整数\n");
printf("按任意键返回菜单……\n");
getchar();
continue;
}
if (choice==1)
{
demand_name();
}
else if (choice==2)
{
demand_telephone();
}
}
} //按用户名查询
void demand_name()
{
struct telephone message;
FILE *fp;
char amend_name[20];
char reply='y';
char found='y';
while (reply=='y')
{
found='n';
fp=fopen("message.dat","r+w");
if (fp!=NULL)
{
system("cls");
printf("\n请输入姓名：");
scanf("%s",amend_name);
while ((fread(&message,sizeof(struct telephone),1,fp))==1)
{
if ((strcmp(amend_name,message.client_name))==0)
{
found='y';
break;
}
}
if (found=='y')
{ printf("==========================================\n");
printf("用户姓名:%s\n",message.client_name); printf("电话号码:%s\n",message.client_telephone);
printf("==========================================\n");
}
else
{
printf("无此人信息!\n");
}
}
else
{
printf("打开文件时出现错误，按任意键返回……\n");
getchar();
return;
}
fclose(fp);
printf("要继续吗?(y/n):");
scanf(" %c",&reply);
}
printf("按任意键返回主菜单……\n");
getchar();
getchar();
} //按电话号码查询
void demand_telephone()
{
struct telephone message;
FILE *fp;
char telephone[20];
char reply='y';
char found='y';
while (reply=='y')
{
found='n';
fp=fopen("message.dat","r+w");
if (fp!=NULL)
{
system("cls");
printf("\n请输入电话号码：");
scanf("%s",telephone);
while ((fread(&message,sizeof(struct telephone),1,fp))==1)
{
if ((strcmp(telephone,message.client_telephone))==0)
{
found='y';
break;
}
}
if (found=='y')
{ printf("==========================================\n");
printf("用户姓名:%s\n",message.client_name); printf("电话号码:%s\n",message.client_telephone);
printf("==========================================\n");
}
else
{
printf("无此电话号码的有关信息!\n");
}
}
else
{
printf("打开文件时出现错误，按任意键返回……\n");
getchar();
return;
}
fclose(fp);
printf("要继续吗?(y/n):");
scanf(" %c",&reply);
}
printf("按任意键返回主菜单……\n");
getchar();
getchar();
} //用户信息汇总函数
void collect_telephone()
{
struct telephone message;
FILE *fp;
fp=fopen("message.dat","r");
if (fp!=NULL)
{
system("cls");
printf("\n用户姓名\t\t电话号码\n");
while ((fread(&message,sizeof(struct telephone),1,fp))==1)
{
printf("\n%-24s",message.client_name); printf("%-12s\n",message.client_telephone);
}
}
else
{
printf("打开文件时出现错误，按任意键返回……\n");
getchar();
return;
}
fclose(fp);
printf("按任意键返回主菜单……\n");
getch();
} void main()
{
char choice[10]="";
int len=0;
while (choice[0]!='7')
{ printf("\t==========电话本号码查询系统=============\n"); printf("\t\t 1、添加新联系人\n");
printf("\t\t 2、修改联系人信息\n");
printf("\t\t 3、删除联系人信息\n");
printf("\t\t 4、联系人信息查询\n");
printf("\t\t 5、联系人信息汇总\n");

printf("\t\t 7、退出\n");
printf("\t=========================================\n");
printf("请选择(1-7):");
scanf("%s",choice);
len=strlen(choice);
if (len>1)
{
printf("请输入1-6之间的整数\n");
printf("按任意键返回主菜单……\n");
getchar();
getchar();
continue;
} switch (choice[0]) {
case '1':
input();
break;
case '2':
amend();
break;
case '3':
delete_client();
break;
case '4':
demand_client();
break;
case '5':
collect_telephone();
break; default:
break;

}
}
}