name="google_ads_frame" marginwidth="0" marginheight="0" src="http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-3528650120430763&dt=1183890684015&lmt=1183890684&format=468x60_as&output=html&correlator=1183890684000&url=http://gmai9999.googlepages.com/home&ad_type=text_image&ui=rc:0&cc=100&flash=9&u_h=768&u_w=1024&u_ah=738&u_aw=1024&u_cd=32&u_tz=480&u_java=true" frameborder="0" width="468" scrolling="no" height="60" allowtransparency="allowtransparency"> 方法一：procedure TForm1.Button1Click(Sender: TObject);varmdb:string;beginmdb:='Provider=Microsoft.Jet.OLEDB.4.0;Data Source=%s;Persist Security Info=False;';if opendialog1.Execute then
adoquery1.Connected:=FALSE;adoquery1.ConnectionString:= Format(Mdb,[DBOP.FileName]); if opendialog1.FileName<>'' then begin adoquery1.LoginPrompt:=FALSE; adoquery1.Connected:=TRUE; end else begin showmessage('数据库没有连接，请重新连接'); opendialog1.Execute; EXIT; END; if not adoquery1.Connected then begin Application.MessageBox('数据库文件无法打开','错误', MB_OK+ MB_ICONINFORMATION); Exit;end;
name="google_ads_frame" marginwidth="0" marginheight="0" src="http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-3528650120430763&dt=1183890684015&lmt=1183890684&format=468x60_as&output=html&correlator=1183890684000&url=http://gmai9999.googlepages.com/home&ad_type=text_image&ui=rc:0&cc=100&flash=9&u_h=768&u_w=1024&u_ah=738&u_aw=1024&u_cd=32&u_tz=480&u_java=true" frameborder="0" width="468" scrolling="no" height="60" allowtransparency="allowtransparency">
方法二：USE ADOANED;
beginadoconnection1.connected:= false;if editconnectionstring(adoconnection1) then Try begin adoconnection1.connected:=true; adoconnection1.keepconnection:=true; adoconnection1.loginprompt:=false; end except Application.Terminate ; end;end; name="google_ads_frame" marginwidth="0" marginheight="0" src="http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-3528650120430763&dt=1183890684015&lmt=1183890684&format=468x60_as&output=html&correlator=1183890684000&url=http://gmai9999.googlepages.com/home&ad_type=text_image&ui=rc:0&cc=100&flash=9&u_h=768&u_w=1024&u_ah=738&u_aw=1024&u_cd=32&u_tz=480&u_java=true" frameborder="0" width="468" scrolling="no" height="60" allowtransparency="allowtransparency">
