求助！

Question

为什么视频里能通过编译，而我这里却不能编译呢？用的都是VC6.0
，而且也是按视频的来操作的，不明白为什么！错误信息：
Compiling...
CALCULATORDlg.cpp
G:\MFC程序\MFC工程\CALCULATOR\CALCULATORDlg.cpp(189) : error C2059: syntax error : 'constant'
G:\MFC程序\MFC工程\CALCULATOR\CALCULATORDlg.cpp(190) : error C2228: left of '.pSubmenu' must have class/struct/union type
G:\MFC程序\MFC工程\CALCULATOR\CALCULATORDlg.cpp(190) : error C2227: left of '->InsertMenuA' must point to class/struct/union
G:\MFC程序\MFC工程\CALCULATOR\CALCULATORDlg.cpp(190) : error C2059: syntax error : 'constant'
G:\MFC程序\MFC工程\CALCULATOR\CALCULATORDlg.cpp(191) : error C2228: left of '.bAllow' must have class/struct/union type
G:\MFC程序\MFC工程\CALCULATOR\CALCULATORDlg.cpp(192) : error C2228: left of '.SetWindowTextA' must have class/struct/union type
执行 cl.exe 时出错.CALCULATORDlg.obj - 1 error(s), 0 warning(s)

Answer 1

void CCALCULATORDlg::OnAllow() 
{
if (!bAllow)
{
CMenu *pmenu = GetMenu(),  // 获取菜单的指针
  *pSubmenu = pmenu->GetSubMenu( 0); //获取子菜单的指针
错误提示：GetSubMenu()参数不仅一个 pSubmenu->InsertMenu(0, MF_BYPOSITION.IDM_SUM, "求和");
pSubmenu->InsertMenu(1, MF_BYPOSITION.IDM_AVERAGE, "求平均");
错误提示：left of '->InsertMenuA' must point to class/struct/union
bAllow = TRUE;
m_Allow.SetWindowText("禁止计算");
}
else
{
CMenu *pmenu = GetMenu(),
  *pSubmenu = pmenu->GetSubMenu(0); pSubmenu->DeleteMenu(IDM_SUM, MF_BYCOMMAND);
pSubmenu->DeleteMenu(IDM_AVERAGE, MF_BYCOMMAND);
bAllow = FALSE;
m_Allow.SetWindowText("允许计算");
}

}void CCALCULATORDlg::OnClose() 
{
OnOK();

}void CCALCULATORDlg::OnSum()
{
double sum = 0;
char strOfNum[10]; m_Edit1.GetWindowText(strOfNum, 10);
sum += atof(strOfNum);
m_Edit2.GetWindowText(strOfNum, 10);
sum += atof(strOfNum);
m_Edit3.GetWindowText(strOfNum, 10);
sum += atof(strOfNum);
m_Edit4.GetWindowText(strOfNum, 10);
sum += atof(strOfNum);
sprintf(strOfNum, "%.3f", sum);
m_Edit5.SetWindowText(strOfNum);}void CCALCULATORDlg::OnAverage()
{
double sum = 0,
   average = 0;
char strOfNum[10]; m_Edit1.GetWindowText(strOfNum, 10);
sum += atof(strOfNum);
m_Edit2.GetWindowText(strOfNum, 10);
sum += atof(strOfNum);
m_Edit3.GetWindowText(strOfNum, 10);
sum += atof(strOfNum);
m_Edit4.GetWindowText(strOfNum, 10);
sum += atof(strOfNum); average = sum / 4;
sprintf(strOfNum, "%.3f", average);
m_Edit6.SetWindowText(strOfNum);
}