C语言大作业_电话号码管理系统设计

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>
#define N 100
void input();//添加新用户
void amend();//修改用户信息
void delete_client();//删除用户信息
void search_client();//用户信息查询
void collect_telephone();//所有用户信息
void save_client(struct telephone message);//保存
void search_name();//按用户名查询
void search_telephone();//按电话号码查询
void goodbye();//退出提示
struct telephone
{
char client_name[20];
char client_address[30];
char client_telephone[15];
};
void main()
{
char choice[10]="";
int len=0;
while (choice[0]!='7')
{
system("cls");
printf(" ◢◤〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓◥◣");
printf("\n ◢◤〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓◥◣");
printf("\n █===┏┯┓┏┯┓┏┯┓┏┯┓┏┯┓┏┯┓┏┯┓┏┯┓┏┯┓┏┯┓===█");
printf("\n █===┠欢┨┠迎┨┠使┨┠用┨┠电┨┠话┨┠管┨┠理┨┠系┨┠统┨===█");
printf("\n █===┗┷┛┗┷┛┗┷┛┗┷┛┗┷┛┗┷┛┗┷┛┗┷┛┗┷┛┗┷┛===█");
printf("\n ◥◣〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓◢◤");
printf("\n ◥◣〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓◢◤\n");
printf(" ★≈★≈★≈★≈★≈★≈★≈★≈★≈★≈★≈★≈★≈★≈★≈★
≈★≈★≈★≈★");
printf("\n 〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓
〓〓〓〓〓〓〓\n");
printf(" ┃| | | ┃\n");
printf(" ┃ 1、 | 用户信息查询 | 2、 | 所有用户信息
┃\n");
printf(" ┃| | | ┃\n");
printf(" ┃=========|════════════|========|═══════
═════┃\n");
printf(" ┃| | | ┃\n");
printf(" ┃ 3、 | 删除用户信息 | 4、 | 添加用户
┃\n");
printf(" ┃| | | ┃\n");
printf(" ┃=========|════════════|========|═══════
═════┃\n");
printf(" ┃| | | ┃\n");
printf(" ┃ 5、 | 修改用户信息 | 6、 | 退出系统
┃\n");
printf(" ┃| | | ┃\n");
printf(" 〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓
〓〓〓〓〓〓\n");
printf("\n 请选择(1-6):");
scanf("%s",choice);
len=strlen(choice);
if (len>1)
{
printf("\n 请输入1-6之间的整数\n");
printf("\n 按回车键返回主菜单\n");
getchar();
getchar();
continue;
}
switch (choice[0])
{
case '1':search_client();break;
case '2':collect_telephone();break;
case '3':delete_client();break;
case '4':input();break;
case '5':amend();break;
case '6':goodbye();break;
default:break;
}
}
}
//添加新用户
void input()
{
struct telephone message;
char reply='y';
char save='y';
while (reply=='y')
{
system("cls");
printf("\n 用户姓名：");
scanf("%s",message.client_name);
printf("\n 家庭住址：");
scanf("%s",message.client_address);
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')
{
save_client(message);
}
printf("\n 是否继续?(y/n):");
scanf(" %c",&reply);
}
printf("\n 按回车键返回主菜单\n");
getchar();
getchar();
}
//保存
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，按回车键返回\n");
getchar();
return;
}
fclose(fp);
}
//修改用户信息
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 请输入你要修改的姓名：");
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 修改用户信息\n");
printf("\n 〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓
〓〓〓〓〓");
printf("\n ┃用户姓名┃ %-16s┃
",message.client_name);
printf("\n ┃━━━━━━━━┃━━━━━━━━━━━━┃");
printf("\n ┃家庭地址┃ %-16s┃",message.client_address);
printf("\n ┃━━━━━━━━┃━━━━━━━━━━━━┃");
printf("\n ┃电话号码┃ %-16s┃",message.client_telephone);
printf("\n 〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓\n");
printf("\n 修改用户信息：\n");
printf("\n 用户姓名：");
scanf("%s",message.client_name);
printf("\n 家庭住址：");
scanf("%s",message.client_address);
printf("\n 电话号码：");
scanf("%s",message.client_telephone);
printf("\n 是否保存?(y/n):");
scanf(" %c",&save);
if(save=='y')
{
fseek(fp,-size,1);
fwrite(&message,sizeof(struct telephone),1,fp);
}
}
else
{
printf("\n 无此信息!\n");
}
}
else
{
printf("\n 打开文件时出现错误，按回车键返回\n");
getchar();
return;
}
fclose(fp);
printf("\n 是否继续?(y/n):");
scanf(" %c",&reply);
}
printf("\n 按回车键返回主菜单\n");
getchar();
getchar();
}
//删除用户信息
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 请输入你要删除的姓名：");
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;
}
else
{
message[i]=temp_str;
i++;
}
}
}
else
{
printf("\n 无此信息，按回车键返回\n");
getchar();
return;
}
fclose(fp);
if (found=='y')
{
printf("\n 用户信息");
printf("\n 〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓");
printf("\n ┃用户姓名┃ %-16s┃",delete_str.client_name);
printf("\n ┃━━━━━━━━┃━━━━━━━━━━━━┃");
printf("\n ┃家庭地址┃ %-16s┃",delete_str.client_address);
printf("\n ┃━━━━━━━━┃━━━━━━━━━━━━┃");
printf("\n ┃电话号码┃ %-16s┃",delete_str.client_telephone);
printf("\n 〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓\n");
}
else
{
printf("\n 无此信息，按回车键返回\n");
getchar();
break;
}
printf("\n 确定要删除?(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("\n 记录已删除\n");
}
else
{
printf("\n 打开文件时出现错误，按回车键返回\n");
getchar();
return;
}
fclose(fp);
}
printf("\n 是否继续?(y/n):");
scanf(" %c",&reply);
}
getchar();
}
//用户信息查询
void search_client()
{
int choice=1;
while (choice!=3)
{
system("cls");
printf("\n 电话查询菜单\n");
printf("\n 〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓");
printf("\n ┃ 1 ┃按用户姓名查询┃");
printf("\n ┃━━━━━━━━┃━━━━━━━━━━━━┃");
printf("\n ┃ 2 ┃按电话号码查询┃");
printf("\n ┃━━━━━━━━┃━━━━━━━━━━━━┃");
printf("\n ┃ 3 ┃返回主菜单┃");
printf("\n 〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓\n");
printf("\n 请选择(1-3):");
scanf("%d%*c",&choice);
if (choice>3)
{
printf("\n 请输入1-3之间的整数(1-3)\n");
printf("\n 按回车键返回");
getchar();
continue;
}
if (choice==1)
{
search_name();
}
else if (choice==2)
{
search_telephone();
}
}
}
//按用户名查询
void search_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 请输入你要查的姓名：");
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 用户信息\n");
printf("\n 〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓");
printf("\n ┃用户姓名┃ %-16s┃",message.client_name);
printf("\n ┃━━━━━━━━┃━━━━━━━━━━━━┃");
printf("\n ┃家庭地址┃ %-16s┃",message.client_address);
printf("\n ┃━━━━━━━━┃━━━━━━━━━━━━┃");
printf("\n ┃电话号码┃ %-16s┃",message.client_telephone);
printf("\n 〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓\n");
}
else
{
printf("\n 无此信息\n");
}
}
else
{
printf("\n 打开文件时出现错误，按回车键返回\n");
getchar();
return;
}
fclose(fp);
printf("\n 是否继续?(y/n):");
scanf(" %c",&reply);
}
printf("\n 按回车键返回主菜单\n");
getchar();
getchar();
}
//按电话号码查询
void search_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 请输入你要查的电话号码：");。