出现下面两个error：我应该怎么修改？

Question

void CXDlg::Ondelete(){// TODO: Add your control notification handler code hereint i=m_num.GetLength();if(i != 0){m_num.Delete(i-1,1);UpdateData(false);}}出现下面两个错误：error C2228:left of '.GetLength' must have class/struct/union typeerror C2228: left of '.Delete' must have class/struct/union type应该怎么改？

Answer 1

m_num没有定义