通讯录管理
1.菜单面板的初始化
2.功能实现
从简单功能开始：①退出
②添加联系人：设计联系人结构体
通讯录存储结构（顺序）
封装函数
③显示联系人
④查找联系人：直接查找
⑤删除联系人
⑥修改联系人
⑦清空联系人
3.运行结果
#define MAX 10
#define INCREMENT 10
#include "iostream"
#include "string"
#include "stdlib.h"
using namespace std;
struct person
{
char name[20];//姓名
int sex;//性别：1男 2女
int age;//年龄
char phone[20]; //电话 //电话为11位超出了int范围
char address[20];//住址
};
struct Addressbook
{
struct person* Ary;//联系人数组指针
int nember;//联系人人数
int booksize;//当前容量
};
void createmenu();//菜单界面的实现
bool createbook(struct Addressbook& book);//初始化通讯录
void add(struct Addressbook& book);//添加联系人
void show(struct Addressbook sbook);//显示联系人
int search_person(struct Addressbook sbook,string sname);//在通讯录中按照姓名关键字查找联系人，查找到则返回相应位置否则返回-1
void delete_person(struct Addressbook& book,string sname);//删除通讯录中的联系人
void modify_person(struct Addressbook& book, string sname);//按名字查找联系人，并选择修改联系人的一项信息
void clean(struct Addressbook& book);//清空联系人
int main() {
createmenu();
Addressbook book;
createbook(book);
string sname;//被删除联系人姓名
do {
int opt = 0;
cout << "请输入功能号：" << endl;
cin >> opt;
switch (opt)
{
case 1:
add(book);
break;
case 2:
show(book);
break;
case 3:
cout << "请输入所要删除的联系人姓名：";
cin >> sname;
delete_person(book, sname);
break;
case 4: {
cout << "请输入所要查找的联系人姓名：";
cin >> sname;
if (search_person(book, sname) == -1)
{
cout << "通讯录内无此联系人！" << endl;
}
else
{
cout << "姓名：" << book.Ary[search_person(book, sname)].name << "\t";
cout << "性别：" << (book.Ary[search_person(book, sname)].sex == 1 ? "男" : "女") << "\t";
cout << "年龄：" << book.Ary[search_person(book, sname)].age << "\t";
cout << "电话：" << book.Ary[search_person(book, sname)].phone << "\t";
cout << "住址：" << book.Ary[search_person(book, sname)].address << endl;
}
break;
}
case 5: {
cout << "请输入所要修改联系人的姓名：";
cin >> sname;
if (search_person(book, sname) == -1)
{
cout << "通讯录内无此联系人！" << endl;
}
else
{
modify_person(book, sname);
}
createmenu();
break;
}
case 6:
clean(book);
createmenu();
break;
case 0: cout << "感谢使用，欢迎下次使用！" << endl;
system("pause");
return 0;
default:
cout << "请输入正确的功能号！" << endl;
}
} while (true);
system("pause");
return 0;
}
void createmenu() {
cout << "\n" << endl;
cout << "\n" << endl;
cout << "\t\t\t\t\t\t1、添加联系人" << endl;
cout << "\t\t\t\t\t\t2、显示联系人" << endl;
cout << "\t\t\t\t\t\t3、删除联系人" << endl;
cout << "\t\t\t\t\t\t4、查找联系人" << endl;
cout << "\t\t\t\t\t\t5、修改联系人" << endl;
cout << "\t\t\t\t\t\t6、清空联系人" << endl;
cout << "\t\t\t\t\t\t0、退出通讯录" << endl;
cout << "\n" << endl;
}
bool createbook(struct Addressbook& book)
{
book.Ary = (struct person*)malloc(MAX * sizeof(struct person));
if (! book.Ary)
{
cout << "内存分配失败，请重启程序！" << endl;
exit(-1);
}
book.nember = 0;
book.booksize = MAX;
return true;
}
void add(struct Addressbook& book) {
if (book.nember == MAX)
{
book.Ary = (struct person*)realloc(book.Ary, (book.booksize + INCREMENT) * sizeof(struct person));
book.booksize += INCREMENT;
if (! book.Ary)
{
cout << "内存分配失败，请重启程序！" << endl;
exit(-1);
}
}
struct person* p = &(book.Ary[book.nember]);
struct person st;
cout << "请输入联系人姓名：" << endl;
cin >> st.name;
strcpy_s(p->name,st.name);
cout << "请输入联系人性别（输入数字：1男 2女）" << endl;
cin >> st.sex;
p->sex = st.sex;
if (!(st.sex == 1 || st.sex ==2))
{
cout << "请输入正确的数字：";
cin >> st.sex;
p->sex = st.sex;
}
cout << "请输入联系人年龄：" << endl;
cin >> st.age;
p->age = st.age;
cout << "请输入联系人电话" << endl;
cin >> st.phone;
strcpy_s(p->phone, st.phone);
cout << "请输入联系人住址" << endl;
cin >> st.address;
strcpy_s(p->address, st.address);
book.nember++;
cout << "添加成功！" << endl;
cout << "\n" << endl;
}
void show(struct Addressbook sbook) {
int i ;
if (sbook.nember == 0)
{
cout << "通讯录内无联系人！" << endl;
return;
}
for ( i = 0; i < sbook.nember; i++)
{
cout << "姓名：" << sbook.Ary[i].name << "\t";
cout << "性别：" << (sbook.Ary[i].sex == 1 ? "男":"女") << "\t";
cout << "年龄：" << sbook.Ary[i].age << "\t";
cout << "电话：" << sbook.Ary[i].phone << "\t";
cout << "住址：" << sbook.Ary[i].address << endl;
}
cout << "已显示所有联系人信息！" << endl;
system("pause");
system("cls");
createmenu();
}
int search_person(struct Addressbook sbook,string sname) {
int i;
for ( i = 0; i < sbook.nember; i++)
{
if (sbook.Ary[i].name == sname) {
return i;
}
}
return -1;
}
void delete_person(struct Addressbook& book, string sname) {
if (search_person(book,sname) == -1)
{
cout << "通讯录内无此联系人" << endl;
}
else
{
int val = search_person(book, sname);//被删除联系人位置
struct person* p = &(book.Ary[val]);
for (int i = 1; i < (book.nember - val); i++)
{
++p;
*(p - 1) = *p;
}
--book.nember;
cout << "删除成功！" << endl;
}
}
void modify_person(struct Addressbook& book, string sname) {
int sex = 0;
int age = 0;
char phone[20] ;
char address[20];
int i = 0;
int val = search_person(book, sname);
struct person* p = &(book.Ary[val]);
cout << "\n" << endl;
cout << "\n" << endl;
cout << "\t\t\t\t\t\t1、修改联系人性别" << endl;
cout << "\t\t\t\t\t\t2、修改联系人年龄" << endl;
cout << "\t\t\t\t\t\t3、修改联系人电话" << endl;
cout << "\t\t\t\t\t\t4、修改联系人住址" << endl;
cout << "\n" << endl;
cout << "请输入所要修改联系人信息项前的功能号：" << endl;
cin >> i;
switch (i)
{
case 1:
cout << "请输入联系人修改后性别：" ;
cin >> sex;
p->sex = sex;
cout << "修改成功！" << endl;
break;
case 2:
cout << "请输入联系人修改后年龄：";
cin >> age;
p->age = age;
cout << "修改成功！" << endl;
break;
case 3:
cout << "请输入联系人修改后电话：";
cin >> phone;
strcpy_s(p->phone, phone);
cout << "修改成功！" << endl;
break;
case 4:
cout << "请输入联系人修改后住址：";
cin >> address;
strcpy_s(p->address, address);
cout << "修改成功！" << endl;
default:
cout << "请输入正确的功能号：" << endl;
modify_person(book,sname);
break;
}
system("pause");
system("cls");
}
void clean(struct Addressbook& book) {
int i = 0;
cout << "是否确定清空通讯录（1——是 2——否）" << endl;
cin >> i;
if (i == 1)
{
book.nember = 0;//逻辑清空
}
cout << "通讯录已清空成功！" << endl;
system("pause");
system("cls");
}