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;}elsebreak;}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;}elsebreak;}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;
}