CFile ::不打开重载函数的实例

Question

void CMFCApplication1Dlg::OnBnClickedButton1()
{
CFile cfile_object;
cfile_object.Open("c:\\test\\ucancode_cfile_example.txt", CFile::modeCreate | CFile::modeWrite);
}

错误：没有重载函数CFile :: open的实例 请帮忙