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ÎÒ×öµÄµÇ¼½çÃæÃ»É趨ȨÏÞ¾ÍÄܳɹ¦ £¬sql±íÖеÄȨÏÞ×Ö¶ÎΪqx,ÏÖÔÚÐèÒªÉ趨ȨÏÞΪaÊÇmainformÖÐN4.Enabled:=false;
Ö÷ÒªÎÊÌâÔÚif adoquery1.fieldbyname('qx').AsString='b' thenmainform.Form2.N4.Enabled:=false;
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procedure TForm1.BitBtn1Click(Sender: TObject);
begin
if (edit2.Text='') or (edit1.Text='') then
begin
showmessage('ÄúµÄÓû§Ãû»òÃÜÂë²»ÄÜΪ¿Õ,ÇëÖØÐÂÊäÈë!');
edit2.SetFocus;
end

else
begin
adoquery1.Close;
adoquery1.SQL.Clear;
adoquery1.SQL.Add('select * from denglu where yhm=:yhm and mm=:mm ');
adoquery1.Parameters.ParamByName('yhm').Value:=edit2.Text;
adoquery1.Parameters.ParamByName('mm').Value:=Edit1.Text;
adoquery1.Open;



if  adoquery1.RecordCount <>0 then
begin


//mainform.username:=edit2.Text;
//mainform.password:=Edit1.Text;
//if adoquery1.fieldbyname('qx').AsString='b' then
//begin
//mainform.Form2.N4.Enabled:=false;
//end;


showmessage('³É¹¦µÇ¼');
mainform.Form2.ShowModal;
denglu.Form1.Hide;
end;

if  adoquery1.RecordCount=0 then
begin
showmessage('ÄúµÄÓû§Ãû»òÃÜÂë²»ÕýÈ·,ÇëÖØÐÂÊäÈë!');
edit2.Text:=''; <


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