如何将这段Delphi代码转换成C++Builder代码????

Question

try
  ADOquery1.SQL.Text:='select * from users'+
                   ' where u_name='''+Edi_user.Text+
                   ''' and u_passwd='''+Edi_pass.Text+'''';
  ADOquery1.Close;
  ADOquery1.Open;
  if ADOquery1.RecordCount=1 then  begin
   Frm_Login.hide;
   Frm_Main:=TFrm_Main.Create(Application);
   Frm_Main.ShowModal();
  end  else  begin
   if passcount<=2 then  begin
      inc(passcount);
      Application.MessageBox('密码输入错误，请重新输入！','错误',MB_ICONWARNING);
      passcount:=passcount+1;
      Edi_pass.Text:='';
      Edi_pass.SetFocus();
  end else
   application.Terminate;
  end;
 finally end;

Answer 1

try
{
  ADOQuery1->SQL->Text = "SELECT * FROM users " + 
                         "WHERE u_name = '" + Edi_user->Text + 
                         "' AND u_passwd = '" + Edi_pass->Text"'";
  ADOQuery->Close();
  ADOQuery->Open();
  if(ADOQuery->RecordCount == 1)
  {
    Frm_Login.Hide();
    Frm_Main = new TFrm_Main(Application);
    Frm_Main->ShowModal();
  }
  else
  {
    if(passcount <= 2)
    {
      ++passwdcount;
      Application->MessageBox("密码输入错误，请重新输入！","错误",MB_ICONWARNING);
      ++passwdcount;
      Edi_pass->Text = "";
      Edi_pass.SetFocus();
      Application->Terminate();
    }
  }
}
catch(...)
{
}

Answer 2

不好意思,前一个回复有个地方写错了
try
{
  ADOQuery1->SQL->Text = "SELECT * FROM users " + 
                         "WHERE u_name = '" + Edi_user->Text + 
                         "' AND u_passwd = '" + Edi_pass->Text"'";
  ADOQuery->Close();
  ADOQuery->Open();
  if(ADOQuery->RecordCount == 1)
  {
    Frm_Login->Hide();
    Frm_Main = new TFrm_Main(Application);
    Frm_Main->ShowModal();
  }
  else
  {
    if(passcount <= 2)
    {
      ++passwdcount;
      Application->MessageBox("密码输入错误，请重新输入！","错误",MB_ICONWARNING);
      ++passwdcount;
      Edi_pass->Text = "";
      Edi_pass->SetFocus();
      Application->Terminate();
    }
  }
}
catch(...)
{
}

Answer 3

try
{
  ADOQuery1->SQL->Text = "SELECT * FROM users " + 
                         "WHERE u_name = '" + Edi_user->Text + 
                         "' AND u_passwd = '" + Edi_pass->Text"'";
  ADOQuery->Close();
  ADOQuery->Open();
  if(ADOQuery->RecordCount == 1)
  {
    Frm_Login->Hide();
    Frm_Main = new TFrm_Main(Application);
    Frm_Main->ShowModal();
  }
  else
  {
    if(passcount <= 2)
    {
      ++passwdcount;
      Application->MessageBox("密码输入错误，请重新输入！","错误",MB_ICONWARNING);
      ++passwdcount;
      Edi_pass->Text = "";
      Edi_pass->SetFocus();
    }
    else
    {
       Application->Terminate();
    }
  }
}
catch(...)
{
}

Answer 4

http://community.csdn.net/Expert/topic/4742/4742428.xml?temp=.4966547