void CPppppppppppppDlg::OnButton1()
{
 // TODO: Add your control notification handler code here
 CEdit* pEdit = (CEdit*)this->GetDlgItem(IDC_EDIT1);
 if (pEdit != NULL)
 {
 //pEdit->LineScroll(pEdit->GetLineCount()); //到最后一行
 pEdit->LineScroll(-10);
} 
}

void CPppppppppppppDlg::OnButton2()
{
 // TODO: Add your control notification handler code here
 CEdit* pEdit = (CEdit*)this->GetDlgItem(IDC_EDIT1);
 if (pEdit != NULL)
 {
 //pEdit->LineScroll(pEdit->GetLineCount()); //到最后一行
 pEdit->LineScroll(10);
}
}