访问冲突error_xutility

Question

我的程序有问题，我不知道该怎么做......

#ifndef CUSTOMER_H
#define CUSTOMER_H 
#include <string>

class customer
{
public:
    customer(void);
        int getphoneNumber () const;
        void setAll_1( int, int, int, int, double, int);
        void setAll_2( std::string, std::string, std::string, std::string);

        void Display();
        ~customer(void);

private:
        int smartCardNumber;
        int serviceNumber;
        int billNumber;
        int phoneNumber;
        int customerID;
        int accountNumber;
        std::string firstName, lastName;
        std::string address;
        std::string password;
        double balance;

};

#endif // !CUSTOMER_H
#include "stdafx.h"
#include "customer.h"
#include <string>
#include <iostream>
#include <iomanip>
using namespace std;

customer::customer(void)
{
    accountNumber =0;
}

customer::~customer(void)
{
}
int customer::getAccountNumber()
{
    return accountNumber;
}

void customer::setAll_1( int cusID, int smartCN, int serNum, int billNum,double balanc, int accountNum)
{
    customerID = cusID; smartCardNumber = smartCN; serviceNumber =serNum;
    billNumber = billNum; accountNumber = accountNum; balance = balanc;
}
void customer::setAll_2( string fS, string lS, string add, string pass)
{
    firstName = fS; lastName = lS;
    address = add; password = pass;
}

的main.cpp

#include "stdafx.h"
#include <iostream>
#include <fstream>
#include "customer.h"
#include <iomanip>

using namespace std;
int getAccount( const char * const prompt );

int _tmain(int argc, _TCHAR* argv[])
{
    fstream inCustomer ("1.txt", ios::in | ios::out );
    if (!inCustomer)
        cerr << "file not opened";
    customer cus1;
    int accountNumber = getAccount( "Enter new account number" );
    inCustomer.seekg( ( accountNumber - 1 ) * sizeof( customer ) );
    inCustomer.read( reinterpret_cast< char * >( &cus1 ), sizeof( customer ) );                          
    if ( cus1.getAccountNumber() == 0 )
    {
        int smartCardNumber, serviceNumber, billNumber, phoneNumber;
        int customerID;
        string firstName, lastName, address, password;
        double balance = 10000;

        cout << setw( 20 ) <<" Customer ID: ";
        cin >> customerID;
        cout << setw( 20 ) << " Customer firstName & lastName : " << endl;
        cin >> firstName >> lastName ;
        cout << setw( 20 ) << " Customer address: " << endl;
        cin >>  address;
        cout << setw( 20 ) << " Customer Service Number" << endl ;
        cin >> serviceNumber;
        cout << setw( 20 ) << " Customer Smart Card Number: " <<endl;
        cin >> smartCardNumber;
        cout<< setw( 20 ) << " Customer Bill Number : " <<endl;
        cin >> billNumber;
        cout  << setw( 20 ) << " Customer Phone Number: " << endl ;
        cin >> phoneNumber;
        cus1.setAll_1(customerID, smartCardNumber, serviceNumber, billNumber, balance, accountNumber);
        cus1.setAll_2(firstName, lastName, address, password);
        inCustomer.seekp( ( accountNumber - 1 ) * sizeof( customer ) );                                     
        inCustomer.write( reinterpret_cast< const char * >( &cus1 ), sizeof( customer ) );         
    } 
    else 
        cout << "Account #" << accountNumber << " already contains information." << endl;

    return 0;
}
                        int getAccount( const char * const prompt )
                        {
                            int accountNumber;
                            do
                            {
                                cout << prompt << " (1 - 100): ";
                                cin >> accountNumber;
                            } while ( accountNumber < 1 || accountNumber > 100 );
                            return accountNumber;
                        }

当我运行代码，返回此函数时，它向我显示：！（https://i.stack.imgur.com/UYn0l.png)![1]

那为什么会发生这种情况以及如何避免这种内存异常呢？谢谢