C++小项目: 通讯录管理系统

#include <iostream>
#include <string>
using namespace std;
const int MAX=1000;

//联系人结构体
struct Person{
    string name;
    int gender;
    int age;
    int phoneNum;
    string address;
};
//通讯录结构体
struct addressBook{
    Person array[MAX];
    int size;
};

//函数声名
void showMenu();//菜单界面
void quit(); //0.退出通讯录
void addPerson(addressBook* p); //1.添加联系人
void showPerson(const addressBook *p); //2.显示联系人
void deletePerson(addressBook *p,string d_name);//3.删除联系人
int findPerson (addressBook *p,string f_name); //4.查找联系人
void modifyPerson(addressBook *p,string m_name);//5.修改联系人
void cleanPerson(addressBook *p);//6.清除联系人

//主函数
int main(){
    int select;
    addressBook user1;
    user1.size=0;
    while(true){
        showMenu();
        cin >> select;
        switch(select){
            case 1:
                addPerson(&user1);
                system("pause");
                system("cls");
                break;
            case 2:
                showPerson(&user1);
                system("pause");
                system("cls");
                break;
            case 3:
            {
                string d_name;
                cout << "请输入删除对象的姓名" << endl;
                cin >> d_name;
                deletePerson(&user1,d_name);
                system("pause");
                system("cls");
                break;
            }    
            case 4:
            {
                string i_name;
                cout << "请输入查找对象的姓名:" << endl;
                cin >> i_name;
                int f_result=findPerson(&user1,i_name);
                if(f_result != -1){
                    cout << "姓名: " << user1.array[f_result].name ;
                    cout << " 性别: " << (user1.array[f_result].gender==1? "男":"女");
                    cout << " 年龄: " << user1.array[f_result].age;
                    cout << " 电话号码: " << user1.array[f_result].phoneNum;
                    cout << " 地址: " << user1.array[f_result].address << endl;
                }   
                system("pause");
                system("cls");               
                break;
            }
            case 5:
            {
                string i_m_name;
                cout << "请输入修改对象的姓名:" << endl;
                cin >> i_m_name;
                modifyPerson(&user1,i_m_name);
                system("pause");
                system("cls");
                break;
            }
            case 6:
                cleanPerson(&user1);
                system("pause");
                system("cls");
                break;
            case 0:
                quit();
                return 0;
        }
    }
    system("pause");
    return 0;
}

//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;

}

//0.退出通讯录
void quit(){
    cout << "已退出通讯录" << endl;
    system("pause");
}

//1.添加联系人:依次写入
void addPerson(addressBook *p){
    cout << "姓名:" << endl;
    cin >> p->array[p->size].name;
    cout << "性别 (1--男,2--女):" << endl;
    while(true){
        cin >> p->array[p->size].gender;
        if(p->array[p->size].gender!=1&&p->array[p->size].gender!=2){
            cout << "输入错误,请重试:" <<endl;
            continue;
        }
        else
            break;
    }
    cout << "年龄:" << endl;
    cin >> p->array[p->size].age;
    cout << "电话号码:" << endl;
    cin >> p->array[p->size].phoneNum;
    cout << "地址:" << endl;
    cin >> p->array[p->size].address;
    p->size++;
}

//2.显示联系人
void showPerson(const addressBook *p){
    if(p->size==0){
        cout << "请先输入联系人" << endl;
        return;
    }
    for (int i=0;i<p->size;i++){
        cout << "姓名: " << p->array[i].name ;
        cout << " 性别: " << (p->array[i].gender==1? "男":"女");
        cout << " 年龄: " << p->array[i].age;
        cout << " 电话号码: " << p->array[i].phoneNum;
        cout << " 地址: " << p->array[i].address << endl;
    }
   
}

//3.删除联系人
void deletePerson (addressBook *p,string d_name){
    int tagNum = findPerson(p,d_name);
    if(tagNum==-1){
        return;
    }
    else{
        for(int i=tagNum;i<p->size;i++){
            p->array[i]=p->array[i+1];
        }
        p->size--;
        cout << "删除指定联系人成功" << endl;
    }
} 

//4.查找联系人
int findPerson (addressBook *p,string f_name){
    int f_num =0;
    if(p->size==0){
        cout << "请先输入联系人" << endl;
        return -1;
    }
    else{
        for(;f_num<p->size;f_num++){
            if(p->array[f_num].name==f_name){
                break;
            }
            if(f_num==p->size-1){
                cout << "查无此人" << endl;
                return -1;
            }
        }
    }
    return f_num;
}

//5.修改联系人
void modifyPerson(addressBook *p,string m_name){
    int tagNum = findPerson(p,m_name);
    if(tagNum==-1){
        return;
    }
    else{
        cout << "姓名:" << endl;
        cin >> p->array[tagNum].name;
        cout << "性别 (1--男,2--女):" << endl;
        while(true){
            cin >> p->array[tagNum].gender;
            if(p->array[tagNum].gender!=1&&p->array[tagNum].gender!=2){
                cout << "输入错误,请重试:" <<endl;
                continue;
            }
            else
                break;
        }
        cout << "年龄:" << endl;
        cin >> p->array[tagNum].age;
        cout << "电话号码:" << endl;
        cin >> p->array[tagNum].phoneNum;
        cout << "地址:" << endl;
        cin >> p->array[tagNum].address;
    }

}

//6.清空联系人
void cleanPerson(addressBook* p){
    p->size=0;
    cout << "已清除联系人" <<endl;
}