C++实现通讯录管理系统

#include
#include
#define MAX 1000//通讯录的最大容量；
using namespace std;
//定义联系人结构体；
struct Lxr
{
	int tag;//tag表示当前存储单元状态，1表示被占用，0表示空闲；
	string name;
	int sex;
	int age;
	string tel;
	string address;
};
Lxr Info[MAX];//创建通讯录；
int Total = 0;//通讯录中总人数；


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;
}
//1、显示功能选择菜单；

int Find(struct Lxr *p, string s)
{
	int i, flag = 0;
	for (i = 0; i < MAX; i++)
	{
		if (p[i].name == s)
		{
			flag = 1;
			break;
		}
	}
	if (flag == 1)
		return i;
	else
		return -1;
}
//2、查找联系人，若找到返回其所在位置，找不到则返回-1；

void Add(Lxr *p)
{
	if (Total == MAX)
	{
		cout << "Your contacts have been full! Cannot append to the list!" << endl;
	}
	else
	{
		int flag = 0, k = 0;//flag记录数组中最小的空闲位置，k表示当前数组单元占用状态；
		for (int i = 0; i < MAX; i++)
		{

			if (p[i].tag == 0)
			{
				flag = i;
				k = 1;//k为1表示占用当前数组单元；
				break;
			}
		}
		if(k == 1)
			{
				cout << "Please input the name:";
				cin >> p[flag].name;
				int f = Find(Info, p[flag].name);
				if (f != -1 && p[f].tag == 1)
				{
					cout << "Find repeated record! Cannot input!" << endl;
				}
				else
				{
					p[flag].tag = 1;//tag为1表示占用当前数组单元；
					cout << "sex(male is 1 and female is 2):";
					cin >> p[flag].sex;
					while (1)
					{
						if (p[flag].sex == 1 || p[flag].sex == 2)
							break;
						else
						{
							cout << "Wrong form! Please input again!" << endl;
							cin >> p[flag].sex;
						}
					}
					cout << "age:";
					cin >> p[flag].age;
					cout << "tel nember:";
					cin >> p[flag].tel;
					cout << "address:";
					cin >> p[flag].address;
					cout << "Succeed!" << endl;
					Total++;
				}
				
			}
	}
	//按任意键清屏；
	system("pause");
	system("cls");
}
//3、添加联系人，上限MAX名；

void Showcontects(struct Lxr *p)
{
	if (Total == 0)
	{
		cout << "The contects is empty!" << endl;
	}
	else
	{
		cout << "Name\t" << "Sex:\t" << "Age:\t" << "Tel:\t\t" << "Address:" << endl;
		for (int i = 0; i < MAX; i++)
		{
			if (p[i].tag == 1)
			{
				cout << p[i].name << "\t" << (p[i].sex == 1 ? "Male" : "Female")
				     << "\t" << p[i].age << "\t" << p[i].tel << "\t\t" 
					 << p[i].address << endl;
			}

		}
	}
	//按任意键清屏；
	system("pause");
	system("cls");
}
//4、显示通讯录中的所有联系人；

void Delete(struct Lxr *p)
{
	cout << "Please input the name:" << endl;
	string k;
	cin >> k;
	int f = Find(p, k);
		if(f == -1)
		{
			cout << "Cannot find the target! Please check again!" << endl;
		}
		else
		{
			p[f].tag = 0;
			Total--;
			cout << "Succeed in deleting the record!" << endl;
		}
		//按任意键清屏；
		system("pause");
		system("cls");
}
//5、删除联系人；

void Showone(struct Lxr *p, int pl)
{
	cout << "Name\t" << "Sex:\t" << "Age:\t" << "Tel:\t\t" << "Address:" << endl;
	cout << p[pl].name << "\t" << (p[pl].sex == 1 ? "Male" : "Female")<< "\t" 
		 << p[pl].age << "\t" << p[pl].tel << "\t\t" << p[pl].address << endl;
	//按任意键清屏；
	system("pause");
	system("cls");
}
//6、显示单个联系人；

int Backtomenu()
{
	cout << "Please input “B” or “b” if you want to go back or input “C”or “c” to continue!" << endl;
	string b;
	cin >> b;
	if (b == "B" || b == "b")
	{
		//清屏
		system("cls");
		return 1;
	}
	return 0;
}
//7、返回功能选择菜单

void Modify(struct Lxr *p)
{
	cout << "Please input the name of the target:" << endl;
	string n;
	cin >> n;
	int f = Find(p, n);
	while(f == -1)
	{
		cout << "Cannot find the target! Please input the name of the target again:" << endl;
		cin >> n;
		f = Find(p, n);
	}
	if(f != -1)
	{
		cout << "input the new name:";
		cin >> p[f].name;
		cout << "input the sex(male is 1 and female is 2):";
		cin >> p[f].sex;
		cout << "input the age:";
		cin >> p[f].age;
		cout << "input the tel number:";
		cin >> p[f].tel;
		cout << "input the address:";
		cin >> p[f].address;
	}
	//按任意键清屏；
	system("pause");
	system("cls");
}
//8、修改联系人信息；

void Clearall(struct Lxr *p)
{
	for (int i = 0; i < MAX; i++)
	{
		p[i].tag = 0;
	}
	Total = 0;
	cout << "Succeed to clear the contects!" << endl;
	//按任意键清屏
	system("pause");
	system("cls");
}
//9、清空所有联系人(不需要清空数组，只需要将tag置零，做逻辑上的清空即可)；

int main()
{
	
	int n;
	cout << "Please input the service you need:" << endl;
	Showmenu();
	cin >> n;
	while (n)
	{
		switch (n)
		{
		case 1: 
		{
			if(Backtomenu() == 1)
				break;
			Add(Info);
		}
			break; //1、添加联系人
		case 2: 
		{
			Showcontects(Info);
		}
			break; //2、显示联系人
		case 3: 
		{
			if (Backtomenu() == 1)
				break;
			Delete(Info);
		}
			break;  //3、删除联系人
		case 4: 
		{
			if (Backtomenu() == 1)
				break;
			cout << "please input the name:" << endl;
			string s;
			cin >> s;
			int f = Find(Info, s);
			if (f == -1)
			{
				cout << "Cannot find the target! Please check again!" << endl;
				//按任意键清屏；
				system("pause");
				system("cls");
			}
			else
			{
				Showone(Info, f);
			}
		}
			break; //4、查找联系人
		case 5:
		{
			if (Backtomenu() == 1)
				break;
			Modify(Info);
		}
			break; //5、修改联系人
		case 6:
		{
			if (Backtomenu() == 1)
				break;
			Clearall(Info);
		}
			break; //6、清空联系人
		}
		cout << "Please input the service you need:" << endl;

		Showmenu();//若不退出，则用户可以一直在功能选择界面进行选择；
		cin >> n;
	}
	if (n == 0)
		cout << "Thanks! Welcome to your use next time!" << endl;
	

	system("pause");

	return 0;
}