新人，求帮助

我用VC++建了一个MFC AppWizard(exe)项目，自己添加了两个自定义的类SmsOperator和ResFee
ResFee源码如下：

ResFee.h
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_RESFEE_H__E6A4FA76_809E_4F72_ADC9_4DFCFE969801__INCLUDED_)
#define AFX_RESFEE_H__E6A4FA76_809E_4F72_ADC9_4DFCFE969801__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

class ResFee
{
public:
ResFee();
virtual ~ResFee();
int result;
int balance;
CString des;

};

#endif // !defined(AFX_RESFEE_H__E6A4FA76_809E_4F72_ADC9_4DFCFE969801__INCLUDED_)


ResFee.cpp
#include "stdafx.h"
#include "HttpTest6.h"
#include "ResFee.h"
#include "SmsOperator.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

ResFee::ResFee()
{
result = -1;
balance = -1;
des = "";

}

ResFee::~ResFee()
{

}

SmsOperator源码如下：
SmsOperator.h
class SmsOperator
{

private:
ResFee res;
public:
SmsOperator();
virtual ~SmsOperator();

ResFee getBalance(CString reg, CString pwd)
{
return NULL;
}

};


SmsOperator.cpp


SmsOperator::SmsOperator()
{

}

SmsOperator::~SmsOperator()
{

}

不知道为什么总是报错，请教别人说getBalance是继承来的，也不知道怎么改。。。
error C2664: '__thiscall ResFee::ResFee(const class ResFee &)' : cannot convert parameter 1 from 'const int' to 'const class ResFee &'
Reason: cannot convert from 'const int' to 'const class ResFee'
No constructor could take the source type, or constructor overload resolution was ambiguous
请大家帮帮忙