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简易通讯录

//封装函数显示该界面,如void showMenu()
//在main函数中调用封装好的函数

#include <iostream>
using namespace std;
#include <string>
constexpr auto MAX = 1000;

struct Person
{
//姓名
string m_Name;
//性别 1 男 2 女
int m_Sex;
//年龄
int m_Age;
//电话
string m_Phone;
//住址
string m_Addr;
};

//设计通讯录结构体
struct Addressbooks
{
//通讯录中保存的联系人数组
struct Person personarray[MAX];

//通讯录中当前记录联系人个数
int m_Size;
};

//1、添加联系人
void addPerson(Addressbooks* abs)
{
//判断通讯录是否已满,如果满了就不再添加
if (abs->m_Size == MAX)
{
cout << "通讯录已满,无法添加!" << endl;
return;
}
else
{
//添加具体联系人

//姓名
string name;
cout << "请输入姓名:" << endl;
cin>>name;
abs->personarray[abs->m_Size].m_Name = name;
//性别
cout << "请输入性别:" << endl;
cout << "1---男" << endl;
cout << "2---女" << endl;
int sex = 0;
while (true)
{
//如果输入的是1或2,可以退出循环,因为输入的是正确值
//如果输入有误,重新输入

cin >> sex;
if (sex == 1 || sex == 2)
{
abs->personarray[abs->m_Size].m_Sex = sex;
break;
}
cout << "输入有误,请重新输入!"<<endl;
}

//年龄
cout << "请输入年龄:" << endl;
int age = 0;
cin >> age;
abs->personarray[abs->m_Size].m_Age = age;

//电话
cout << "请输入联系电话:" << endl;
string phone;
cin >> phone;
abs->personarray[abs->m_Size].m_Phone = phone;

//家庭住址:
cout << "请输入家庭住址:" << endl;
string address;
cin >> address;
abs->personarray[abs->m_Size].m_Addr = address;

//更新通讯录人数
abs->m_Size++;
cout << "添加成功!"<<endl;

system("pause");//请按任意键继续
system("cls");//清屏操作
}
}

//2、显示所有的联系人
void showPerson(Addressbooks * abs)
{
//判断通讯录中人数是否为0,若为0,提示记录为空
//若不为0,显示记录的联系人信息
if (abs->m_Size==0)
{
cout << "当前记录为空" << endl;
}
else
{
for (int i = 0; i < abs->m_Size; i++)
{
cout << "姓名:" << abs->personarray[i].m_Name << "\t";
cout << "性别::" << (abs->personarray[i].m_Sex==1?"男":"女" )<< "\t";
cout << "年龄:" << abs->personarray[i].m_Age << "\t";
cout << "电话:" << abs->personarray[i].m_Phone << "\t";
cout << "地址:" << abs->personarray[i].m_Addr << endl;
}
}
system("pause");
system("cls");
}

//检测联系人是否存在,如果存在,返回联系人所在数组中的具体位置,不存在返回-1
int isExist(Addressbooks*abs,string name)
{
for (int i = 0; i < abs->m_Size;i++)
{
//找到用户输入的名字了
if (abs->personarray[i].m_Name == name)
{
return i;//找到了,返回这个人在数组中的下标编号
}
}
return -1;//如果遍历结束都没有找到,返回-1
}

//3、删除指定联系人
void deletePerson(Addressbooks * abs)
{
cout << "请输入您要删除的联系人:" << endl;

string name;
cin >> name;

int ret=isExist(abs, name);

if (ret != -1)
{
//查找到人,进行删除操作
for (int i = ret; i < abs->m_Size; i++)
{
//数据前移
abs->personarray[i] = abs->personarray[i + 1];
}
abs->m_Size--;//更新通讯录中的人员数
cout << "删除成功" << endl;
}
else
{
cout << "查无此人" << endl;
}
system("pause");
system("cls");
}

//4、查找指定的联系人
void findPerson(Addressbooks * abs)
{
cout << "请输入您要查找的联系人:" << endl;
string name;
cin >> name;
//判断指定的联系人是否存在通讯录中
int ret = isExist(abs, name);

if (ret != -1)//找到联系人
{
cout << "姓名:" << abs->personarray[ret].m_Name << "\t";
cout << "性别:" << abs->personarray[ret].m_Sex << "\t";
cout << "年龄:" << abs->personarray[ret].m_Age << "\t";
cout << "电话:" << abs->personarray[ret].m_Phone << "\t";
cout << "地址:" << abs->personarray[ret].m_Addr << endl;
}
else
{
cout << "查无此人" << endl;
}
system("pause");
system("cls");
}
//5、修改指定联系人的信息
void modifyPerson(Addressbooks *abs)
{
cout << "请输入您要修改联系人的名字:" << endl;
string name;
cin >> name;
int ret = isExist(abs, name);

if (ret != -1)//找到了指定联系人
{
//姓名
string name;
cout << "请输入姓名:" << endl;
cin >> name;
abs->personarray[ret].m_Name = name;

//性别
cout << "请输入性别:" << endl;
cout << "1----男" << endl;
cout << "2----女" << endl;
int sex = 0;

while (true)
{

cin >> sex;
if (sex == 1 || sex == 2)
{
abs->personarray[ret].m_Sex = sex;
break;
}
cout << "输入有误,请重新输入" << endl;
}

//年龄
cout << "请输入年龄:" << endl;
int age = 0;
cin >> age;
abs->personarray[ret].m_Age = age;

//电话
cout << "请输入电话:" << endl;
int num = 0;
cin >> num;
abs->personarray[ret].m_Phone = num;

//地址
cout << "请输入地址:" << endl;
string address;
cin >> address;
abs->personarray[ret].m_Addr = address;

cout << "修改成功!" << endl;
}
else//未找到指定联系人
{
cout << "查无此人" << endl;
}
system("pause");
system("cls");
}

//6、清空所有联系人
void cleanPerson(Addressbooks *abs)
{
abs->m_Size = 0;//将当期记录联系人数量置为0,做逻辑清空操作
cout << "通讯录已清空!" << endl;
system("pause");
system("cls");



}



//菜单界面
void showMenu()
{
cout << "***************************" << endl;
cout << "***** 1、添加联系人 *****" << endl;
cout << "***** 2、显示联系人 *****" << endl;
cout << "***** 3、删除联系人 *****" << endl;
cout << "***** 4、查找联系人 *****" << endl;
cout << "***** 5、修改联系人 *****" << endl;
cout << "***** 6、清空联系人 *****" << endl;
cout << "***** 0、退出通讯录 *****" << endl;
cout << "***************************" << endl;
};


int main()
{
//创建通讯录结构体变量
Addressbooks abs;

//初始化通讯录中当前人员个数
abs.m_Size = 0;

//创建用户选择输入的变量
int select = 0;

while (true)
{
//菜单调用
showMenu();

cin >> select;

switch (select)
{
case 1://1、添加联系人
addPerson(&abs);//利用地址传递,可以修饰实参
break;
case 2://2、显示联系人
showPerson(&abs);
break;
case 3://3、删除联系人
{
cout << "请输入删除联系人的姓名:" << endl;
string name;
cin >> name;

if (isExist(&abs, name) == -1)
{
cout << "查无此人" << endl;
}
else
{
cout << "找到此人" << endl;
}
}
deletePerson(&abs);
break;
case 4://4、查找联系人
findPerson(&abs);
break;
case 5://5、修改联系人
modifyPerson(&abs);
break;
case 6://6、清空联系人
cleanPerson(&abs);
break;
case 0://0、退出通讯录
cout << "欢迎老板下次使用" << endl;
system("pause");
return 0;
break;

default:
break;
}
};

//菜单调用
showMenu();

cin >> select;

switch (select)
{
case 1://1、添加联系人
break;
case 2://2、显示联系人
break;
case 3://3、删除联系人
break;
case 4://4、查找联系人
break;
case 5://5、修改联系人
break;
case 6://6、清空联系人
break;
case 0://0、退出通讯录
cout << "欢迎老板下次使用" << endl;
system("pause");
return 0;
break;

default:
break;
}
system("pause");
return 0;
}
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