超市管理系统

windows编程，mfc编程nclude"afxdialogex.h"#include"MainDlg.h"//CDlgDrop对话框IMPLEMENT_DYNAMIC(CDlgDrop,CDialogEx)CDlgDrop::CDlgDrop(CWnd*pParent/*=NULL*/):CDialogEx(CDlgDrop::IDD,pParent){}CDlgDrop::~CDlgDrop(){}voidCDlgDrop::DoDataExchange(CDataExchange*pDX){CDialogEx::DoDataExchange(p