调用2类继承的vector函数

Question

我要讲一词多义了。当我调用函数时，我遇到了向量的麻烦。这是我的代码:

Class Customer: 

#pragma once
#include<iostream>
#include<string>
#include<vector>
using namespace std;
class Customer
{
protected:
    string id;
    float money;
public:
    Customer();
    ~Customer();
    virtual void Input();
    virtual void Output();
    string GetId()
    {
        return id;
    }
    void SetId(string ID)
    {
        id = ID;
    }
};

类LoyalCustomer:

#pragma once
#include"Customer.h"
class LoyalCustomer:public Customer
{
    int level;  //level of relationship
public:
    LoyalCustomer();
    ~LoyalCustomer();
    void Input();
    void Output();
};

RegularCustomer:

#pragma once
class RegularCustomer:public Customer
{
public:
    RegularCustomer();
    ~RegularCustomer();
    void Input();
    void Output();
};

类超市:

#pragma once
#include"LoyalCustomer.h"
#include"RegularCustomer.h"
class SuperMarket
{
    vector<Customer*> list;
public:
    SuperMarket();
    ~SuperMarket();
    void FindCustomer()
    {
        string ID;
        cout << "Input id of customer: ";
        cin >> ID;
        for (int i = 0; i<list.size(); i++)
            if (ID == list[i]->GetId())
            {
                //do something
            }
    }
    void Input()
    {
        string ID;
        cout << "Input id of customer: ";
        cin >> ID;
        Customer *p = NULL;
        if (ID[0] == 'L')
        {
            p = new LoyalCustomer;
            p->Input();
            p->SetId(ID);
            list.push_back(p);
        }
        if (ID[0] == 'R')
        {
            p = new RegularCustomer;
            p->Input();
            p->SetId(ID);
            list.push_back(p);
        }
    }
    void Output()
    {
        //printf customer 
    }
};

当我在FindCustomer()函数中调用GetID()函数时:if (ID == list[I]-> GetID())，然后我运行我的代码，程序不会通知错误，但我输入"ID"来查找，它不会发现。我不知道该怎么补救。请帮帮我。谢谢!

Answer 1

尝试比较ID.compare(list[i]->GetId()) == 0