VS2017创建MFC类，没有CFormView，自己手动创建类，并手写继承。

#pragma once
#include <afxext.h>
#include "resource.h" 

class CDisplayView : public CFormView
{
    DECLARE_DYNCREATE(CDisplayView)

protected: 
    CDisplayView();
public:
    virtual ~CDisplayView();

    enum { IDD = IDD_DISPLAYVIEW };//IDD_DISPLAYVIEW模态窗口的ID

#ifdef _DEBUG
    virtual void AssertValid() const;
    virtual void Dump(CDumpContext& dc) const;
#endif

protected:
    virtual void DoDataExchange(CDataExchange* pDX);

protected:
    DECLARE_MESSAGE_MAP()
};

#include "stdafx.h"
#include "CDisplayView.h"

// CDisplayView
IMPLEMENT_DYNCREATE(CDisplayView, CFormView)
//IDD_DISPLAYVIEW模态框的ID
CDisplayView::CDisplayView(): CFormView(IDD_DISPLAYVIEW){

}

CDisplayView::~CDisplayView()
{
}

BEGIN_MESSAGE_MAP(CDisplayView, CFormView)
END_MESSAGE_MAP()

#ifdef _DEBUG
void CDisplayView::AssertValid() const
{
    CFormView::AssertValid();
}

#ifndef _WIN32_WCE
void CDisplayView::Dump(CDumpContext& dc) const
{
    CFormView::Dump(dc);
}
#endif
#endif //_DEBUG

void CDisplayView::DoDataExchange(CDataExchange* pDX)
{
    CFormView::DoDataExchange(pDX);
    //  DDX_Text(pDX, IDC_EDIT2, sdf);
}