C++编程实现一个通讯录管理系统，一个cpp文件搞定，运行该cpp文件即可使用相关的6个功能。

#include <iostream>
using namespace std;
#include <string.h>
#define MAX 100
void show_menu()//菜单选项
{
	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;
}

struct Person {//联系人基本信息
	string name;
	int sex;
	int age;
	string adress;
	string phone_num;
};
struct PersonArray {//通讯录结构体
	Person list[MAX];
	int m_size=0;//定义通讯录存储信息的最大容量
};
void AddPerson(PersonArray *p)
{
	if (p->m_size == MAX)
	{
		cout << "通讯录已满，无法添加" << endl;
		return;
	}
	else 
	{
		cout << "请输入新联系人的姓名：" << endl;
		string m_name;
		cin >> m_name;
		p->list[p->m_size].name = m_name;
		cout << "请输入新联系人的性别：（输入1表示男生，输入2表示女生）" << endl;
		int sex_0;
		cin >> sex_0;
		p->list[p->m_size].sex = sex_0;
		cout << "请输入新联系人的年龄：" << endl;
		int age_0;
		cin >> age_0;
		p->list[p->m_size].age = age_0;
		cout << "请输入家庭住址："<<endl;
		string adress_0;
		cin >> adress_0;
		p->list[p->m_size].adress = adress_0;
		cout << "请输入联系方式：";
		string phone_num_0;
		cin >> phone_num_0;
		p->list[p->m_size].phone_num = phone_num_0;
		p->m_size++;
		cout << "联系人添加成功！" << endl;
		system("pause");
		system("cls");
	}
}
void ShowPerson(PersonArray* p)
{
	if (p->m_size == 0)
		cout << "没有任何联系人！" << endl;
	else {
		for (int i = 0; i < p->m_size; i++)
		{
			cout << p->list[i].name << "\t";
			cout << p->list[i].sex << "\t";
			cout << p->list[i].age << "\t";
			cout << p->list[i].adress << "\t";
			cout << p->list[i].phone_num << endl;
		}
		system("pause");
		system("cls");
	}
}
int  LookForPerson(string name, PersonArray *p)
{
	for (int i = 0; i < p->m_size; i++)
	{
		if (p->list[i].name == name)
			return i;
  }
	return -1;
}
void DeletePerson(string name,PersonArray *p,int x)
{
	if (x == -1)
		cout << "查无此人！" << endl;
	else {
		int i = 0;
		for (; p->list[i].name != name; i++);
		for (int j = i; j < p->m_size - 1; j++)
		{
			p->list[j] = p->list[j + 1];
		}
		p->m_size--;
		cout << "删除联系人成功！" << endl;
		system("pause");
		system("cls");
	}
}
void CorrectPerson(string name, PersonArray* p)
{
	int i = 0;
	for (; name != p->list[i].name; i++);
	cout << "请输入新联系人的姓名：" << endl;
	string m_name;
	cin >> m_name;
	p->list[i].name = m_name;
	cout << "请输入新联系人的性别：（输入1表示男生，输入2表示女生）" << endl;
	int sex_0;
	cin >> sex_0;
	p->list[i].sex = sex_0;
	cout << "请输入新联系人的年龄：" << endl;
	int age_0;
	cin >> age_0;
	p->list[i].age = age_0;
	cout << "请输入家庭住址：" << endl;
	string adress_0;
	cin >> adress_0;
	p->list[i].adress = adress_0;
	cout << "请输入联系方式：";
	string phone_num_0;
	cin >> phone_num_0;
	p->list[i].phone_num = phone_num_0;
	cout << "联系人修改成功！" << endl;
	system("pause");
	system("cls");

}
void ClearPerson(PersonArray* p)
{
	p->m_size = 0;
	cout << "已成功清空所有联系人！" << endl;
	system("pause");
	system("cls");
}


int main()
{
	PersonArray  q;
	int select = 0;
	while (true)
	{
		show_menu();
		cin >> select;
		switch (select)
		{
		case 1://添加联系人
			AddPerson(&q);
			break;
		case 2://显示联系人
			ShowPerson(&q);
			break;
		case 3://删除联系人
		{
			cout << "请输入要删除的联系人姓名：";
			string name_0;
			cin >> name_0;
			int x = LookForPerson(name_0, &q);
			DeletePerson(name_0, &q,x);
		}
			break;
		case 4://查找联系人
		{
			cout << "请输入要查找的联系人姓名：" << endl;
			string name_1;
			cin >> name_1;
			int x = LookForPerson(name_1, &q);
			if (x == -1)
				cout << "查无此人！" << endl;
			else {
				cout << "要查找的联系人信息如下：" << endl;
				cout << q.list[x].name << "\t";
				cout << (q.list[x].sex == 1 ? "男生" : "女生") << "\t";
				cout << q.list[x].age <<"岁" <<"\t";
				cout << q.list[x].adress << "\t";
				cout << q.list[x].phone_num << endl;
			}
			system("pause");
			system("cls");
			break;
		}
		case 5://修改联系人
		{
			cout << "请输入你要修改的联系人名字：";
			string name_2;
			cin >> name_2;
			CorrectPerson(name_2, &q);
				break;
		}
		case 6://清空联系人
			ClearPerson(&q);
			break;
		case 0://退出通讯录
		{
			cout << "欢迎下次使用！";
			system("pause");
			return 0;
			break;
		}
		}
	}


}

C++实现的源码如上。