实现的功能有添加联系人、显示联系人、删除联系人、查找联系人、修改联系人、清空联系人、退出联系人。

#include <iostream>
#include <string>
using namespace std;

#define MAX 1000

//设计联系人的结构体
struct Person
{
	//姓名
	string m_Nmae;
	//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值
	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_Nmae = 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[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; 
		
		//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
		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、显示所有联系人
void showPerson(Addressbooks *abs)
{
 	//判断通讯录中人数是否为0，如果为0，提升记录为空
	//如果不为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_Nmae<<"\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<<"住址："<<abs->personArray[i].m_Addr<<endl; 
		}
	}
	
	system("pause");//按任意键继续
	system("cls");//清屏 
} 


//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
//参数1 通讯录  参数2 对比姓名 
int isExist(Addressbooks *abs,string name)
{
    for(int i = 0;i < abs->m_Size;i++)
	{
		if(abs->personArray[i].m_Nmae == name)
		{
			return i;
		}
	}	
	return -1;
} 


//3、删除指定的联系人
void deletePerson(Addressbooks *abs)
{
	cout<<"请输入您要删除的联系人"<<endl;
	
	string name;
	cin>>name;
	
	//ret == -1  未查到 
	int ret = isExist(abs,name);
	if(ret != -1)
	{
		for(int i = ret;i < abs->m_Size;i++)
		{
			//数据前移
			abs->personArray[i] = abs->personArray[i+1]; 
		}
		abs->m_Size--;
		cout<<"删除成功"<<endl; 
	} 
	else
	{
		cout<<"查无此人"<<endl; 
	}
	system("pause");
	system("cls");
} 
 
 
//4、查找指定联系人的信息
void findPerson(Addressbooks *abs)
{
	cout<<"请输入您要查找的联系人"<<endl;
	string name;
	cin>>name;
	
	int ret = isExist(abs,name);
	
	if(ret !=-1)
	{
		cout<<"姓名: "<<abs->personArray[ret].m_Nmae<<"\t";
		cout<<"性别："<<(abs->personArray[ret].m_Sex == 1 ? "男":"女")<<"\t";
		cout<<"年龄："<<abs->personArray[ret].m_Age<<"\t";
		cout<<"电话："<<abs->personArray[ret].m_Phone<<"\t";
		cout<<"住址："<<abs->personArray[ret].m_Addr<<endl; 
	}
	else
	{
		cout<<"查无此人"<<endl; 
	}
	system("pause");
	system("cls");
} 


//5、修改指定的联系人信息
void modifyPerson(Addressbooks *abs)
{
	cout<<"请输入您要修改的联系人"<<endl;
	string name;
	cin>>name;
	
	int ret = isExist(abs,name);
	
	if(ret != -1)
	{
		//姓名 
		string name;
		cout<<"请输入姓名："<<endl;
		cin>>name;
		abs->personArray[ret].m_Nmae = 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<<"请输入联系电话："<<endl;
		string phone;
		cin>>phone;
		abs->personArray[ret].m_Phone = phone;
	
		//住址
		cout<<"请输入家庭住址："<<endl;
		string address;
		cin>>address;
		abs->personArray[ret].m_Addr = address;
	
		cout<<"修改成功"<<endl; 
	}
	else
	{
		cout<<"查无此人"<<endl;
	}
	
	system("pause");
	system("cls"); 
} 
 
 
//6、清空联系人
void cleanPerson(Addressbooks *abs)
{
	abs->m_Size = 0;//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的人员个数 
	abs.m_Size = 0; 
	
	int select = 0;
	
	while(true)
	{
		//菜单调用 
	    showMenu();
	
		cin>>select;
	
		switch(select)
		{
			case 1: //1、添加联系人 
			    addPerson(&abs);
				break;
			case 2: //2、显示联系人 
				showPerson(&abs); 
				break;
			case 3: //3、添删除系人 
				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<<"欢迎下次使用" << endl;
		  	  system("pause");
				return 0; 
				break;
			default:
				break;
		}
	}
	
	
	
	system("pause");
	return 0;
 }