6. 清空所有联系人
main.c
#include "contact.h"
//查找联系人，返回下标；
int find(pCon pcon,char *name)
{
int i=0;
while(i < pcon->num)
{
if(strcmp(name,pcon->telbook[i].name) == 0)
{
return i;
}
i++;
}
return -1;
}
/****************添加联系人****************/
void add_peo(pCon pcon)
{
if(pcon->num==NUM_MAX)
{
printf("电话本已满，无法存储！");
return ;
}
printf("姓名：");
scanf("%s",pcon->telbook[pcon->num].name);
printf("性别：");
scanf("%s",pcon->telbook[pcon->num].sex);
printf("年龄：");
scanf("%d",&(pcon->telbook[pcon->num].age));
printf("电话：");
scanf("%s",pcon->telbook[pcon->num].tel);
printf("住址：");
scanf("%s",pcon->telbook[pcon->num].addr);
pcon->num++;
printf("添加成功，请按任意键继续...");
getch();
}
/****************删除联系人****************/
void del_peo(pCon pcon)
{
char delname[NAME_MAX];
int ret = 0;
printf("请输入要删除的联系人姓名：");
scanf("%s",delname);
ret = find(pcon,delname);
if(0 == ret)
{
int j;
for(j=ret;j<pcon->num-1;j++)
{
pcon->telbook[j]=pcon->telbook[j+1];
}
pcon->num--;
printf("删除成功！\n");
}
else
{
printf("未找到此联系人！\n");
}
printf("请按任意键继续...");
getch();
}
/****************查找联系人****************/
void serach_peo(pCon pcon)
{
char sername[NAME_MAX];
int ret = 0;
printf("请输入要查找的联系人姓名：");
scanf("%s",sername);
ret = find(pcon,sername);
if(0 == ret)
{
printf("%s\t%s\t%d\t%s\t%s\n",pcon->telbook[ret].name,pcon->telbook[ret].sex,pcon->telbook[ret].age,pcon->telbook[ret].tel,pcon->telbook[ret].addr);
printf("查找完成！");
}
else
{
printf("未找到此联系人！\n");
}
printf("请按任意键继续...");
getch();
}
/****************修改联系人****************/
void modify_peo(pCon pcon)
{
char modname[NAME_MAX];
int ret = 0;
printf("请输入要修改的联系人姓名：");
scanf("%s",modname);
ret = find(pcon,modname);
if(0 == ret)
{
printf("姓名：");
scanf("%s",pcon->telbook[ret].name);
printf("性别：");
scanf("%s",pcon->telbook[ret].sex);
printf("年龄：");
scanf("%d",&(pcon->telbook[ret].age));
printf("电话：");
scanf("%s",pcon->telbook[ret].tel);
printf("住址：");
scanf("%s",pcon->telbook[ret].addr);
printf("修改成功！");
}
else
{
printf("无此联系人信息，无法修改。\n");
}
printf("请按任意键继续...");
getch();
}
/****************显示联系人****************/
void show_peo(pCon pcon)
{
int i;
if(pcon->num == 0)
{
printf("电话本为空！");
}
else
{
for(i=0;i<pcon->num;i++)
{
printf("%s\t%s\t%d\t%s\t%s\n",pcon->telbook[i].name,pcon->telbook[i].sex,pcon->telbook[i].age,pcon->telbook[i].tel,pcon->telbook[i].addr);
}
}
printf("请按任意键继续...");
getch();
}
/****************清空联系人****************/
void clear_peo(pCon pcon)
{
pcon->num = 0;
printf("清空完成，请按任意键继续...");
getch();
}#include "contact.h"
char show_menu()
{
printf("***************************************\n");
printf("* 菜单 *\n");
printf("* 1.添加联系人 2.删除联系人 *\n");
printf("* 3.查找联系人 4.修改联系人 *\n");
printf("* 5.显示联系人 6.清空联系人 *\n");
printf("* 0.退出 *\n");
printf("***************************************\n");
return 0;
}
int main()
{
struct contact my_contact;
int input;
my_contact.num=0;
do
{
system("cls");
show_menu();
printf("请选择你所需的操作：");
x:
scanf("%d",&input);
if(input>=0 && input <=6)
{
switch(input)
{
case 0:
return 0;
case 1:
{
add_peo(&my_contact);
break;
}
case 2:
{
del_peo(&my_contact);
break;
}
case 3:
{
serach_peo(&my_contact);
break;
}
case 4:
{
modify_peo(&my_contact);
break;
}
case 5:
{
show_peo(&my_contact);
break;
}
case 6:
{
clear_peo(&my_contact);
break;
}
default:
break;
}
}
else
{
printf("输入有误，请重新输入：");
goto x;
}
}while(input>=0 && input<=6);
return 0;
}#ifndef __CONTACT_H__
#define __CONTACT_H__
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <conio.h>
#define NAME_MAX 20
#define SEX_MAX 5
#define TEL_MAX 12
#define ADDR_MAX 20
#define NUM_MAX 1000
typedef struct people
{
char name[NAME_MAX];
char sex[SEX_MAX];
int age;
char tel[TEL_MAX];
char addr[ADDR_MAX];
}pPeople;
typedef struct contact
{
int num;
struct people telbook[NUM_MAX];
}*pCon;
void add_peo(pCon pcon);
void del_peo(pCon pcon);
void serach_peo(pCon pcon);
void modify_peo(pCon pcon);
void show_peo(pCon pcon);
void clear_peo(pCon pcon);
#endif
原文地址：http://blog.csdn.net/yangjiankang_0929/article/details/45021117
