c++实现简单通讯录系统

需求分析：

1.通讯录可以添加联系人。

2.通讯录可以显示所有联系人。

3.通讯录可以查找联系人。

4.通讯录可以删除联系人。

5.通讯录可以修改联系人。

6.可以清空通讯录。

7.退出通讯录。

项目代码：

#include
#include
#include
using namespace std;
#define MAX 1000
typedef struct person {                     //定义一个联系人的结构体
    string name;
    string sex;
    int age;
    int telnumber;
    string addr;
}person;
typedef struct Addressbooks {                 //定义一个通讯录，自带一个联系人数组，里面可以存放MAX个联系人
    struct person personArray[MAX];
    int m_size=0;
}Addressbooks;
void Menu() {                                  //菜单函数
    cout << "                                                    通讯录管理系统" << endl;
    cout << "" << endl;
    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 << "                                                    7--退出联系人" << endl;
}
void addPerson(Addressbooks* abs) {                 //添加联系人的函数实现
    if (abs->m_size == MAX) {
        cout << "此通讯录已满，不能添加\n" << endl;
    }
    else {
        string name;
        string sex;
        int age;
        int telnumber;
        string addr;
        cout << "请输入联系人姓名:" << endl;
        cin >> name;
        abs->personArray[abs->m_size].name = name;
        cout << "请输入联系人性别：" << endl;
        cin >> sex;
        abs->personArray[abs->m_size].sex = sex;
        cout << "请输入联系人年龄：" << endl;
        cin >> age;
        abs->personArray[abs->m_size].age = age;
        cout << "请输入联系人电话号码:" << endl;
        cin >> telnumber;
        abs->personArray[abs->m_size].telnumber = telnumber;
        cout << "请输入联系人家庭住址：" << endl;
        cin >> addr;
        abs->personArray[abs->m_size].addr = addr;
        abs->m_size++;
        cout << "添加成功!!!" << endl;
        system("pause");                                //利用这行语句达到一个显示按任意键继续的效果
        system("cls");                                  //清空整个屏幕，刷新屏幕
    }
}
void showPerson(Addressbooks* abs) {                    //显示整个通讯录中联系人的函数实现
    for (int i = 0; i < abs->m_size; i++) {
        cout << abs->personArray[i].name << " " << abs->personArray[i].sex << " " << abs->personArray[i].age << " " << abs->personArray[i].telnumber << " " << abs->personArray[i].addr << endl;
    }
    system("pause");
    system("cls");
}
int selectPerson(Addressbooks* abs,string name) {                   //查询输入的联系人是否存在，存在返回联系人坐在的下标值，不存在则返回-1
    for (int i = 0; i < abs->m_size; i++) {
        if (abs->personArray[i].name == name) {
            return i;
        }
    }
    return -1;
}
void deletePerson(Addressbooks* abs) {                              //删除联系人的函数实现
    string name;
    cout << "请输入删除联系人的名字：" << endl;
    cin >> name;
    if (selectPerson(abs, name) != -1) {
        for (int i = selectPerson(abs, name); i < abs->m_size;i++) {
            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");
}
void searchPerson(Addressbooks* abs) {                      //查询联系人并输出相关信息的函数实现
    string name;
    cout << "请输入联系人姓名：" << endl;
    cin >> name;
    int ret = selectPerson(abs, name);
    if (ret != -1) {
        cout << abs->personArray[ret].name << " " << abs->personArray[ret].sex << " " << abs->personArray[ret].age << " " << abs->personArray[ret].telnumber << " " << abs->personArray[ret].addr << endl;
    }
    else {
        cout << "查无此人" << endl;
    }
    system("pause");
    system("cls");
}
void revisePerson(Addressbooks* abs) {                      //修改联系人的函数实现
    string name;
    cout << "请选择联系人 ：" << endl;
    cin >> name;
    int ret;
    ret = selectPerson(abs, name);
    if (ret != -1) {
        cout << "                               1--修改姓名" << endl;
        cout << "                               2--修改性别" << endl;
        cout << "                               3--修改年龄" << endl;
        cout << "                               4--修改电话号码" << endl;
        cout << "                               5--修改家庭住址" << endl;
        cout << "                               0--退出" << endl;
        int chosen;
        while (1) { 
        cout << "选择："<> chosen;
            switch (chosen)
            {
            case 1:
            {
                string name2;
                cout << "修改名字：" << endl;
                cin >> name2;
                abs->personArray[ret].name = name2;
                break;
            }
            case 2:
            {
                string sex;
                cout << "修改性别：" << endl;
                cin >> sex;
                abs->personArray[ret].sex = sex;
                break;
            }
            case 3:
            {
                int age;
                cout << "修改年龄：" << endl;
                cin >> age;
                abs->personArray[ret].age = age;
                break;
            }
            case 4:
            {
                int tel;
                cout << "修改电话号码:" << endl;
                cin >> tel;
                abs->personArray[ret].telnumber = tel;
                break;
            }
            case 5:
            {
                string addr;
                cout << "修改住址：" << endl;
                cin >> addr;
                abs->personArray[ret].addr = addr;
                break;
            }
            case 0:
            goto FLAG1;
            default:
                break;
            }
        }
    }
    else {
        cout << "查无此人!!!" << endl;
    }
    FLAG1:
    system("pause");
    system("cls");
}
void clear(Addressbooks* abs) {
    abs->m_size = 0;
    cout << "此通讯录已清空!!!" << endl;
    system("pause");
    system("cls");
}
int main() {
    Addressbooks book1;                             //先定义一个通讯录，并添加一个联系人hyp
    book1.personArray[0].name = "hyp";              
    book1.personArray[0].sex = "man";
    book1.personArray[0].age = 21;
    book1.personArray[0].telnumber = 76766767;
    book1.personArray[0].addr = "重庆";
    book1.m_size = 1;
    int chosen;                                     
    while (1) {
        Menu();
        cout << "选择：" ;
        cin >> chosen;
        switch (chosen)
        {
        case 1:                             //添加联系人
            addPerson(&book1);
            break;
        case 2:                             //显示联系人
            showPerson(&book1);
            break;
        case 3:                             //删除联系人
            deletePerson(&book1);
            break;
        case 4:                             //查找联系人
            searchPerson(&book1);
            break;
        case 5:                             //修改联系人
            revisePerson(&book1);
            break;
        case 6:                             //清空联系人
            clear(&book1);
            break;
        case 7:                             //退出通讯录
            return 0;
            break;
        default:
            break;
        }

    }
    return 0;
}

效果：

显示联系人

添加联系人

后面效果就不一一显示了