终端显示的通讯录功能

C++的通讯录

#include
#include
#include 
#include
#include

using namespace std;

struct contact
{
int id;
string name;
unsigned long telNumber;
string gender;
string address;
};

int menu();
int findFriend(string name,contact* Friends, int len);
bool addContact(const contact myFriend, contact* Friends, int friend_id);
bool deleteFriend(string friendName, contact* Friends, int& len);
int exitContact();
void showContact(contact* Friends,int len);
void editContact(string friendName, contact* Friends,int len);
void clearContact(contact* Friends, int len);

int main(){
  int friend_id = 0;
  contact Friends[1000];
  int len = 0;
  while(true){
    int func = menu();
    switch (func)
    {
      case 1: //添加 完成
      {
        if(len<1000){
            contact myFriend;
            string chkString;
            long chkInt;
            cout<<"请输入联系人姓名："<<endl;
            cin >> chkString;
            while(cin.fail()){
              cout<<"请检查输入类型是否正确"<<endl;
              cin.clear();
              cin.ignore();
              cout<<"请输入联系人姓名："<<endl;
              cin >> chkString;
            }
            myFriend.name = chkString;

            cout<<"请输入联系人性别："<<endl;
            cin >> chkString;
            while(cin.fail()){
              cout<<"请检查输入类型是否正确"<<endl;
              cin.clear();
              cin.ignore();
              cout<<"请输入联系人性别："<<endl;
              cin >> chkString;
            }
            myFriend.gender = chkString;
            
            cout<<"请输入联系人电话："<<endl;
            cin >> chkInt;
            while(cin.fail()){
              cout<<"请检查输入类型是否正确"<<endl;
              cin.clear();
              cin.ignore();
              cout<<"请输入联系人电话："<<endl;
              cin >> chkInt;
            }
            myFriend.telNumber = chkInt;

            cout<<"请输入联系人住址："<<endl;
            cin >> chkString;
            while(cin.fail()){
              cout<<"请检查输入类型是否正确"<<endl;
              cin.clear();
              cin.ignore();
              cout<<"请输入联系人住址："<<endl;
              cin >> chkString;
            }
            myFriend.address = chkString;
            addContact(myFriend,Friends,friend_id);
            friend_id +=1;
            len +=1;
            cout<<"添加成功！"<<endl;
        }else
            cout<<"超出联系人最大数量：1000"<<endl;
        break;
        }
      case 2: //删除 完成
      {
        string name;
        cout << "请输入要删除的联系人的名字: " << endl;
        cin >> name;
        deleteFriend(name, Friends, len); // 注意，我们现在传递 len 作为引用
        break;
      }
      case 3: //查找
      {
        string chkString;
        string name;
        int index;
        cout<<"请输入要查找的联系人的名字:"<<endl;
        cin>>chkString;
        while(cin.fail()){
          cout<<"请检查输入类型是否正确"<<endl;
          cin.clear();
          cin.ignore();
          cout<<"请输入联系人姓名："<<endl;
          cin >> chkString;
        }
        name = chkString;
        index = findFriend(name,Friends,len);
        if(index == -1)
        {
          cout << "未收录该联系人" << name << "请确定输入是否正确"<<endl;
        }
        else
          cout<<Friends[index].id+1<<"\t"<<Friends[index].name<<"\t"<<Friends[index].gender<<"\t"<<Friends[index].telNumber<<"\t"<<Friends[index].address<<endl;
        break;
      }
      case 4: //修改 完成
      {
        string name;
        cout << "请输入要修改的联系人名称：" << endl;
        cin >> name ;
        editContact(name,Friends,len);
        cout << "修改成功!" << endl;
      break;
      }
      case 5: //清空 完成
      {
        clearContact(Friends, len);
        friend_id=0;
        len = 0;
      break;
      }
      case 6: //显示 完成
      {
      showContact(Friends,len);
      break;
      }
      case 0: //退出 完成
      {
        exitContact();
        break;
      }
      default:
        break;
    }
  }
}
int menu(){
  int func;
  cout<< "===========通讯录==========="<<endl;
  cout<< "=======1、添加联系人========="<<endl;
  cout<< "=======2、删除联系人========="<<endl;
  cout<< "=======3、查找联系人========="<<endl;
  cout<< "=======4、修改联系人========="<<endl;
  cout<< "=======5、清空联系人========="<<endl;
  cout<< "=======6、显示联系人========="<<endl;
  cout<< "=======0、退出本系统========="<<endl;
  cout<< "==========================="<<endl;
  cout<<"请选择您需要的功能："<<endl;
  cin>>func;
  return func;
}

bool addContact(const contact myFriend, contact* Friends, int friend_id){
  if(sizeof(myFriend) != 0 && Friends != nullptr){
    Friends[friend_id].id = friend_id;
    Friends[friend_id].name = myFriend.name;
    Friends[friend_id].gender = myFriend.gender;
    Friends[friend_id].telNumber = myFriend.telNumber;
    Friends[friend_id].address = myFriend.address;
    return true;
  }else
  cout<<"请检查联系人是否为空或通讯录是否为空"<<endl;
}

bool deleteFriend(string friendName, contact* Friends, int& len) {
    int index = findFriend(friendName, Friends, len);
    if (index != -1) {
        // Shift elements to the left to overwrite the deleted contact
        for (int i = index; i < len - 1; ++i) {
            Friends[i] = Friends[i + 1];
            Friends[i].id = i; // 更新联系人的ID
        }
        len--; // Decrease the number of contacts

        // 更新删除操作之后的联系人的ID
        for (int i = index; i < len; ++i) {
            Friends[i].id = i;
        }

        cout << "联系人删除成功!" << endl;
        return true;
    } else {
        cout << "未找到联系人!" << endl;
        return false;
    }
}

int findFriend(string name,contact* Friends, int len){
  for(int i = -1; i<len;i++){
    if(Friends[i].name == name){             
      return i;
    }
    else
      return i;
  }
}

int exitContact(){
  cout<<"欢迎下次使用"<<endl;
  exit(0);
  return 0;
}

void showContact(contact* Friends,int len){
  if (sizeof(Friends)!=0 && len!=0){
    for(int i=0; i<len; i++){
      cout<<Friends[i].id+1<<"\t"<<Friends[i].name<<"\t"<<Friends[i].gender<<"\t"<<Friends[i].telNumber<<"\t"<<Friends[i].address<<endl;
    }
  }else
  cout<<"联系人为空，请检查通讯录！"<<endl;
}

void editContact(string friendName, contact* Friends, int len){
  int friend_id = findFriend(friendName, Friends,len);
  contact myFriend;
  cout<<"请输入联系人姓名："<<endl;
  cin >> myFriend.name;
  cout<<"请输入联系人性别："<<endl;
  cin >> myFriend.gender;
  cout<<"请输入联系人电话："<<endl;
  cin >> myFriend.telNumber;
  cout<<"请输入联系人住址："<<endl;
  cin >> myFriend.address;
  addContact(myFriend,Friends,friend_id);
  cout<<"修改完成！"<<endl;
}

void clearContact(contact* Friends, int len){
  memset(Friends,0,len*sizeof(contact));
  cout<<"已清空所有联系人!"<<endl;
}