【c++】通讯录管理系统-编程知识

1.系统功能介绍及展示
2.创建项目
3.菜单实现
4.退出功能实现
5.添加联系人—结构体设计
6.添加联系人—功能实现
7.显示联系人
8.删除练习人—检测联系人是否存在
9.删除联系人—功能实现
10.查找联系人
11.修改联系人
12.清空通讯录

在这里插入图片描述

#include <iostream>
#include <fstream>
#include <cstring>
using namespace std;const int MAX = 1e3 + 10; // 最大人数struct Person
{string name;    // 姓名string sex;     // 性别int age;        // 年龄string phone;   // 电话号码string address; // 住址
};struct addressbook
{Person personarray[MAX]; // 通讯录中保存的联系人数组int size;                // 通讯录中人员个数
};void showMenu();
void addPerson(addressbook *abs);
void showPerson(const addressbook *abs);
int namefind(addressbook *abs);
int phonefind(addressbook *abs);
int addressfind(addressbook *abs);
void deletePerson(addressbook *abs);
void findPerson(addressbook *abs);
void modifyPerson(addressbook *abs);
void ofaddressbook(const addressbook *abs);
void ifaddressbook(addressbook *abs);
void cleanPerson(addressbook *abs);
void end();int main()
{int select;addressbook abs;abs.size = 0;while (true){showMenu(); // 菜单调用cin >> select;system("clear");switch (select){case 0: // 退出通讯录end();break;case 1: // 添加联系人addPerson(&abs);break;case 2: // 显示联系人showPerson(&abs);break;case 3: // 删除联系人deletePerson(&abs);break;case 4: // 查找联系人findPerson(&abs);break;case 5: // 修改联系人modifyPerson(&abs);break;case 6: // 备份通讯录ofaddressbook(&abs);break;case 7: // 恢复通讯录ifaddressbook(&abs);break;case 8: // 清空通讯录cleanPerson(&abs);break;default:cout << "输入错误，请重新输入" << endl;cout << "请按任意键并回车继续" << endl; // MAC系统cin >> select;                          // MAC系统system("clear");                        // MAC系统// system("pause");WINDOWS系统// system("cls");WINDOWS系统continue;}cout << "请按任意键并回车继续" << endl; // MAC系统cin >> select;                          // MAC系统system("clear");                        // MAC系统// system("pause");WINDOWS系统// system("cls");WINDOWS系统}return 0;
}void showMenu()
{cout << "***********************" << endl<< "*****1、添加联系人*****" << endl<< "*****2、显示联系人*****" << endl<< "*****3、删除联系人*****" << endl<< "*****4、查找联系人*****" << endl<< "*****5、修改联系人*****" << endl<< "*****6、备份通讯录*****" << endl<< "*****7、恢复通讯录*****" << endl<< "*****8、清空通讯录*****" << endl<< "*****0、退出通讯录*****" << endl<< "***********************" << endl;
}void addPerson(addressbook *abs)
{if (abs->size == MAX) // 判断通讯录人数是否已满{cout << "通讯录人数已满" << endl;}else{cout << "请输入姓名：";cin >> abs->personarray[abs->size].name;cout << "请输入性别：";cin >> abs->personarray[abs->size].sex;cout << "请输入年龄：";cin >> abs->personarray[abs->size].age;cout << "请输入电话号码：";cin >> abs->personarray[abs->size].phone;cout << "请输入住址：";cin >> abs->personarray[abs->size].address;abs->size++;cout << "联系人添加成功" << endl;}
}void showPerson(const addressbook *abs)
{if (abs->size) // 判断人数是否为零{for (int i = 0; i < abs->size; i++){cout << "姓名：" << abs->personarray[i].name<< "\t性别：" << abs->personarray[i].sex<< "\t年龄：" << abs->personarray[i].age<< "\t电话号码：" << abs->personarray[i].phone<< "\t住址：" << abs->personarray[i].address<< endl;}}else{cout << "通讯录为空" << endl;}
}int namefind(addressbook *abs)
{string name;cout << "请输入您要查找联系人的姓名" << endl;cin >> name;for (int i = 0; i < abs->size; i++) // 查找输入的联系人{if (name.compare(abs->personarray[i].name) == 0){return i;}}return -1;
}int phonefind(addressbook *abs)
{string phone;cout << "请输入您要查找联系人的电话号码" << endl;cin >> phone;for (int i = 0; i < abs->size; i++) // 查找输入的联系人{if (phone.compare(abs->personarray[i].phone) == 0){return i;}}return -1;
}int addressfind(addressbook *abs)
{string address;cout << "请输入您要查找联系人住址" << endl;cin >> address;for (int i = 0; i < abs->size; i++) // 查找输入的联系人{if (address.compare(abs->personarray[i].address) == 0){return i;}}return -1;
}void deletePerson(addressbook *abs)
{int n;cout << "请输入查询方式\n1.姓名\n2.电话号码\n3.住址" << endl;cin >> n;switch (n) // 选择查询方式{case 1:n = namefind(abs);break;case 2:n = phonefind(abs);break;case 3:n = addressfind(abs);break;default:cout << "您输入有误，请重新输入" << endl;}system("clear");if (n != -1){abs->personarray[n] = abs->personarray[abs->size - 1]; // 替换将删除的联系人abs->size--;                                           // 通讯录人数-1cout << "删除成功" << endl;}else{cout << "查无此人" << endl;}
}void findPerson(addressbook *abs)
{int n;cout << "请输入查询方式\n1.姓名\n2.电话号码\n3.住址" << endl;cin >> n;switch (n) // 选择查询方式{case 1:n = namefind(abs);break;case 2:n = phonefind(abs);break;case 3:n = addressfind(abs);break;default:cout << "您输入有误，请重新输入" << endl;}system("clear");if (n != -1){cout << "姓名：" << abs->personarray[n].name<< "\t性别：" << abs->personarray[n].sex<< "\t年龄：" << abs->personarray[n].age<< "\t电话号码：" << abs->personarray[n].phone<< "\t住址：" << abs->personarray[n].address<< endl;}else{cout << "查无此人" << endl;}
}void modifyPerson(addressbook *abs)
{int n;cout << "请输入查询方式\n1.姓名\n2.电话号码\n3.住址" << endl;cin >> n;switch (n) // 选择查询方式{case 1:n = namefind(abs);break;case 2:n = phonefind(abs);break;case 3:n = addressfind(abs);break;default:cout << "您输入有误，请重新输入" << endl;}system("clear");if (n != -1){cout << "请输入修改后的姓名：";cin >> abs->personarray[n].name;cout << "请输入修改后的性别：";cin >> abs->personarray[n].sex;cout << "请输入修改后的年龄：";cin >> abs->personarray[n].age;cout << "请输入修改后的电话号码：";cin >> abs->personarray[n].phone;cout << "请输入修改后的住址：";cin >> abs->personarray[n].address;cout << "修改成功" << endl;}else{cout << "查无此人" << endl;}
}void ofaddressbook(const addressbook *abs)
{ofstream ofs;ofs.open("addressbook.txt", ios::out); // 打开文件ofs << "姓名\t性别\t年龄\t电话号码\t住址" << endl;for (int i = 0; i < abs->size; i++){ofs << abs->personarray[i].name<< "\t\t" << abs->personarray[i].sex<< "\t\t" << abs->personarray[i].age<< "\t\t" << abs->personarray[i].phone<< "\t\t" << abs->personarray[i].address<< endl;}ofs.close(); // 关闭文件cout << "备份成功" << endl;
}void ifaddressbook(addressbook *abs)
{string temp;ifstream ifs;ifs.open("addressbook.txt", ios::in); // 打开文件if (ifs.is_open()){getline(ifs, temp); // 将文件上方的标签输入到临时字符串while (ifs >> abs->personarray[abs->size].name >> abs->personarray[abs->size].sex >> abs->personarray[abs->size].age >> abs->personarray[abs->size].phone >> abs->personarray[abs->size].address){abs->size++; // 人数+1}ifs.close(); // 关闭文件cout << "恢复成功" << endl;}else{cout << "文件打开失败" << endl;}
}void cleanPerson(addressbook *abs)
{abs->size = 0; // 将通讯录清空cout << "通讯录已清空" << endl;
}void end()
{cout << "欢迎下次使用" << endl;exit(0); // 退出程序
}