求大神指教数据库问题
unsigned long int count;
if(!mysql_query(&myCont, " select * from dataBase where userId = '" +m_id+ "' and userPassword ='" +m_pwd+ "'"))
{
result=mysql_store_result(&myCont) ;
count=(unsigned long)mysql_num_rows(result);
if(count!=0)
{
MessageBox("登陆成功");
CDialog::OnOK();
CMainDlg dlg;
dlg.DoModal();
}
else
{
MessageBox("登陆失败");
}
}
else
{
MessageBox("数据库连接失败");
}
数据库肯定已经连接了,可是每次输入数据都是连接失败求指导