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第一种方法delphi 快速导出excel

uses ComObj,clipbrd;

function ToExcel(sfilename:string; ADOQuery:TADOQuery):boolean;

const

      xlNormal=-;

var

    y     : integer;

    tsList : TStringList;

    s,filename  :string;

    aSheet :Variant;

    excel :OleVariant;

    savedialog  :tsavedialog;

begin

    Result := true;

    try

         excel:=CreateOleObject('Excel.Application');

         excel.workbooks.add;

      except

            //screen.cursor:=crDefault;

         showmessage('无法调用Excel！');

         exit;

    end;

    savedialog:=tsavedialog.Create(nil);

    savedialog.FileName:=sfilename;   //存入文件    savedialog.Filter:='Excel文件(*.xls)|*.xls';

    if   savedialog.Execute   then

    begin

        if   FileExists(savedialog.FileName)   then

              try

                  if   application.messagebox('该文件已经存在，要覆盖吗？','询问',mb_yesno+mb_iconquestion)=idyes

   then

                        DeleteFile(PChar(savedialog.FileName))

                  else

                  begin

                   Excel.Quit;

                   savedialog.free;

                   //screen.cursor:=crDefault;

                   Exit;

                  end;

              except

                  Excel.Quit;

                  savedialog.free;

                  screen.cursor:=crDefault;

                  Exit;

              end;

        filename:=savedialog.FileName;

    end;

    savedialog.free;

    if   filename=''   then

    begin

      result:=true;

      Excel.Quit;

      //screen.cursor:=crDefault;

      exit;

    end;

    aSheet:=excel.Worksheets.Item[];

    tsList:=TStringList.Create;

    //tsList.Add('查询结果');   //加入标题    s:='';   //加入字段名    for y := 0 to adoquery.fieldCount - 1 do

    begin

       s:=s+adoQuery.Fields.Fields[y].FieldName+# ;

       Application.ProcessMessages;

    end;

    tsList.Add(s);

    try

        try

            ADOQuery.First;

            While Not ADOQuery.Eof do

            begin

                s:='';

                for y:= to ADOQuery.FieldCount- do

                begin

                    s:=s+ADOQuery.Fields[y].AsString+#;

                    Application.ProcessMessages;

                end;

                tsList.Add(s);

                ADOQuery.next;

            end;

            Clipboard.AsText:=tsList.Text;

        except

            result:=false;

        end;

    finally

        tsList.Free;

    end;

    aSheet.Paste;

    MessageBox(Application.Handle,'数据导出完毕！','系统提示',MB_ICONINFORMATION

 or MB_OK);

    try

          if   copy(FileName,length(FileName)-,)<>'.xls'   then

                FileName:=FileName+'.xls';

          Excel.ActiveWorkbook.SaveAs(FileName,   xlNormal,   '',   '',   False,   False);

    except

      Excel.Quit;

      screen.cursor:=crDefault;

      exit;

    end;

    Excel.Visible   :=   false; //true会自动打开已经保存的excel

    Excel.Quit;

    Excel := UnAssigned;

end;

调用:         ToExcel('D:\a.xsl',QueryToExcel);//路径可以自定义

------------------------------------------------------------------------------------------------- *************************************************************************************************

二; delphi如何导出EXCEL，代码。非第3方控件首先在Uses处加上ComObj

procedure TForm1.Button1Click(Sender: TObject);

var  h,k:integer;

Excelid: OleVariant;

s: string;

begin

try

Excelid := CreateOLEObject('Excel.Application');

except

Application.MessageBox('Excel没有安装！', '提示信息',

 MB_OK+MB_ICONASTERISK+MB_DEFBUTTON1+MB_APPLMODAL);

Exit;

end;

try

   ADOQuery1.Close;

ADOQuery1.SQL.Clear;

ADOQuery1.SQL.Add('select * from jj_department');

ADOQuery1.Open;

k:=ADOQuery1.RecordCount;

Excelid.Visible := True;

Excelid.WorkBooks.Add;

Excelid.worksheets[].range['A1:c1'].Merge(True);

Excelid.WorkSheets[].Cells[,].Value :='部门编码表' ;

Excelid.worksheets[].Range['a1:a1'].HorizontalAlignment := $FFFFEFF4;

Excelid.worksheets[].Range['a1:a1'].VerticalAlignment := $FFFFEFF4;

Excelid.WorkSheets[].Cells[,].Value := '组别编号';

Excelid.WorkSheets[].Cells[,].Value := '公司编号';

Excelid.WorkSheets[].Cells[,].Value := '组别名称';

Excelid.worksheets[].Range['A1:c1'].Font.Name := '宋体';

Excelid.worksheets[].Range['A1:c1'].Font.Size := ;

Excelid.worksheets[].range['A1:c2'].font.bold:=true;

Excelid.worksheets[].Range['A2:c2'].Font.Size := ;

Excelid.worksheets[].Range['A2:c2'].HorizontalAlignment := $FFFFEFF4;

Excelid.worksheets[].Range['A2:c2'].VerticalAlignment := $FFFFEFF4;

h:=;

ADOQuery1.First;

while not ADOQuery1.Eof do

begin           Excelid.WorkSheets[].Cells[h,].Value := Adoquery1.FieldByName('Fdept_id').AsString;

Excelid.WorkSheets[].Cells[h,].Value := Adoquery1.FieldByName('Ffdept_id').AsString;

Excelid.WorkSheets[].Cells[h,].Value := Adoquery1.FieldByName('Fdept_name').AsString;

Inc(h);

Adoquery1.Next;

end;

s := 'A2:f'+ IntToStr(k+);

Excelid.worksheets[].Range[s].Font.Name := '宋体';

Excelid.worksheets[].Range[s].Font.size := ;

Excelid.worksheets[].Range[s].Borders.LineStyle := ;

Excelid.Quit;

except

Application.MessageBox('导入数据出错！请检查文件的格式是否正确！', '提示信息',

 MB_OK+MB_ICONASTERISK+MB_DEFBUTTON1+MB_APPLMODAL);

end;

MessageBox(GetActiveWindow(), 'EXCEL数据导出成功!', '提示信息',

 MB_OK +MB_ICONWARNING);

end;

三; delphi导出EXCEL

uses

  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

  Dialogs, ExtCtrls, Mask, ComCtrls, StdCtrls, Buttons, Grids, ValEdit, IdBaseComponent,

  CheckLst, excel97, ExcelXP, OleServer, ComObj, excel2000, mmsystem, ShellAPI,

  ADODB, DB, DBGrids, clipbrd;

 Var

  FExcel:OleVariant; //excel应用程序  FWorkBook :OleVariant; //工作表  Temsheet:OleVariant; //工作薄  FPicture:OleVariant;//图片  tmpstr:String;

  range:variant;//范围  i,j,TemInt:integer;

  TemFileName:String;

begin

  SaveDialog1.Filter:='.xls';

  if SaveDialog1.Execute then

  begin

    TemFileName:=SaveDialog1.FileName+'.xls';

    Screen.Cursor:=CrHourGlass;

    TemInt:=;

    FExcel:= CreateoleObject('excel.Application');

    FWorkBook:=FExcel.WorkBooks.Add(-); //新的工作表    Temsheet:=FWorkBook.Worksheets.Add;

    Temsheet.Name:='利润统计';

    Temsheet.Select;

    Temsheet.Columns[].ColumnWidth:=;//设置列宽度    Temsheet.Columns[2].ColumnWidth:=10;

    Temsheet.Columns[].ColumnWidth:=;

    Temsheet.Columns[].ColumnWidth:=;

    Temsheet.Columns[].ColumnWidth:=;

    Temsheet.Columns[].ColumnWidth:=;

    Temsheet.Columns[].ColumnWidth:=;

    Temsheet.Columns[].ColumnWidth:=;

    Temsheet.Columns[].ColumnWidth:=;

    Temsheet.Columns[].ColumnWidth:=;

    range:=Temsheet.Range[Temsheet.cells[,],Temsheet.cells[,]];//选定表格    range.select;

    range.merge; //合并单元格    tmpstr:=ExtractFilePath(ParamStr(0))+'tem.jpg';   //添加图片    FPicture:=Temsheet.Pictures.Insert(tmpstr);

    FPicture.Left:=;

    FPicture.Top:=;

    FPicture.width:=;

    FPicture.height:=;

    FPicture:=null;

    range:=Temsheet.Range[Temsheet.cells[,],Temsheet.cells[,]];//选定表格    range.select;

    range.merge;

    Range.Characters.Font.FontStyle :='加粗';

    Temsheet.Cells[,].HorizontalAlignment:=-; //字居中    Temsheet.Cells[2,3]:=ComSName;

    range:=Temsheet.Range[Temsheet.cells[,],Temsheet.cells[,]];//选定表格    range.select;

    range.merge;

    Temsheet.Cells[,].HorizontalAlignment:=-; //字居中    Temsheet.Cells[4,3]:=ComEName;

    range:=Temsheet.Range[Temsheet.cells[,],Temsheet.cells[,]];//选定表格    range.select;

    range.merge;

    Temsheet.Cells[,].HorizontalAlignment:=-; //字居中    Temsheet.Cells[2,5]:=ComName;

    Temsheet.Cells[,]:='联系人：';

    Temsheet.Cells[,]:='电话：';

    Temsheet.Cells[,]:=ComPhone;

    Temsheet.Cells[,]:='传真：';

    Temsheet.Cells[,]:=ComFax;

    range:=Temsheet.Range[Temsheet.cells[,],Temsheet.cells[,]];//选定表格    range.select;

    range.merge;

    range:=Temsheet.Range[Temsheet.cells[,],Temsheet.cells[,]];//选定表格    range.select;

    range.merge;

    Range.Characters.Font.FontStyle :='加粗';

    Temsheet.Cells[,]:='入库信息：';

    range:=Temsheet.Range[Temsheet.cells[,],Temsheet.cells[,]];//选定表格    range.select;

    range.merge;

    Temsheet.Cells[,]:='序号';

    Temsheet.Cells[,].HorizontalAlignment:=-; //字居中    Temsheet.Cells[8,1].Interior.Color:=clGray;     //单元格背景色    range:=Temsheet.Range[Temsheet.cells[8,1],Temsheet.cells[8,1]];//选定表格    range.borders.linestyle:=1;//华线    for i:=0 to DBGrid1.Columns.Count - 1 do

    begin

      Temsheet.Cells[,i+]:=DBGrid1.Columns[i].Title.Caption;

      Temsheet.Cells[,i+].HorizontalAlignment:=-; //字居中      Temsheet.Cells[8,i+2].Interior.Color:=clGray;     //单元格背景色      range:=Temsheet.Range[Temsheet.cells[8,i+2],Temsheet.cells[8,i+2]];//选定表格      range.borders.linestyle:=1;//华线    end;

    //////////////////////////////////////////////

    j:=;

    DBGrid1.DataSource.DataSet.First;

    while not DBGrid1.DataSource.DataSet.Eof do

    begin

      Temsheet.Cells[+j,].Value:=j+;

      Temsheet.Cells[+j,].HorizontalAlignment:=-; //字居中      range:=Temsheet.Range[Temsheet.cells[9+j,1],Temsheet.cells[9+j,1]];//选定表格      range.borders.linestyle:=1;//华线      for i:=0 to DBGrid1.Columns.Count - 1 do

      begin

        Temsheet.Cells[+j,i+].Value:=DBGrid1.Fields[i].AsString;

        range:=Temsheet.Range[Temsheet.cells[+j,i+],Temsheet.cells[+j,i+]];//选定表格        range.borders.linestyle:=1;//华线      end;

      DBGrid1.DataSource.DataSet.Next;

      j:=j+;

    end;

    TemInt:=+ DBGrid1.DataSource.DataSet.RecordCount;

    range:=Temsheet.Range[Temsheet.cells[TemInt,],Temsheet.cells[TemInt,]];//选定表格    range.select;

    range.merge;

    TemInt:=TemInt+;

    range:=Temsheet.Range[Temsheet.cells[TemInt,],Temsheet.cells[TemInt,]];//选定表格    range.select;

    range.merge;

    Range.Characters.Font.FontStyle :='加粗';

    Temsheet.Cells[TemInt,]:='出库信息：';

    range:=Temsheet.Range[Temsheet.cells[TemInt,],Temsheet.cells[TemInt,]];//选定表格    range.select;

    range.merge;

    TemInt:=TemInt+;

    Temsheet.Cells[TemInt,]:='序号';

    Temsheet.Cells[TemInt,].HorizontalAlignment:=-; //字居中    Temsheet.Cells[TemInt,1].Interior.Color:=clGray;     //单元格背景色    range:=Temsheet.Range[Temsheet.cells[TemInt,1],Temsheet.cells[TemInt,1]];//选定表格    range.borders.linestyle:=1;//华线    for i:=0 to DBGrid2.Columns.Count - 1 do

    begin

      Temsheet.Cells[TemInt,i+]:=DBGrid2.Columns[i].Title.Caption;

      Temsheet.Cells[TemInt,i+].HorizontalAlignment:=-; //字居中      Temsheet.Cells[TemInt,i+2].Interior.Color:=clGray;     //单元格背景色      range:=Temsheet.Range[Temsheet.cells[TemInt,i+2],Temsheet.cells[TemInt,i+2]];//选定表格      range.borders.linestyle:=1;//华线    end;

    TemInt:=TemInt+;

    //////////////////////////////////////////////

    j:=;

    DBGrid2.DataSource.DataSet.First;

    while not DBGrid2.DataSource.DataSet.Eof do

    begin

      Temsheet.Cells[TemInt+j,].Value:=j+;

      Temsheet.Cells[TemInt+j,].HorizontalAlignment:=-; //字居中      range:=Temsheet.Range[Temsheet.cells[TemInt+j,1],Temsheet.cells[TemInt+j,1]];//选定表格      range.borders.linestyle:=1;//华线      for i:=0 to DBGrid2.Columns.Count - 1 do

      begin

        Temsheet.Cells[TemInt+j,i+].Value:=DBGrid2.Fields[i].AsString;

        range:=Temsheet.Range[Temsheet.cells[TemInt+j,i+],Temsheet.cells[TemInt+j,i+]];//选定表格        range.borders.linestyle:=1;//华线      end;

      DBGrid2.DataSource.DataSet.Next;

      j:=j+;

    end;

    TemInt:=TemInt+ DBGrid2.DataSource.DataSet.RecordCount;

    TemInt:=TemInt+;

    range:=Temsheet.Range[Temsheet.cells[TemInt,],Temsheet.cells[TemInt,]];//选定表格    range.select;

    range.merge;

    TemInt:=TemInt+;

    range:=Temsheet.Range[Temsheet.cells[TemInt,],Temsheet.cells[TemInt,]];//选定表格    range.select;

    range.merge;

    Range.Characters.Font.FontStyle :='加粗';

    Temsheet.Cells[TemInt,]:='入库总额：';

    Temsheet.Cells[TemInt,]:=Trim(Edit1.Text);

    range:=Temsheet.Range[Temsheet.cells[TemInt,],Temsheet.cells[TemInt,]];//选定表格    range.select;

    range.merge;

    TemInt:=TemInt+;

    range:=Temsheet.Range[Temsheet.cells[TemInt,],Temsheet.cells[TemInt,]];//选定表格    range.select;

    range.merge;

    Range.Characters.Font.FontStyle :='加粗';

    Temsheet.Cells[TemInt,]:='出库总额：';

    Temsheet.Cells[TemInt,]:=Trim(Edit2.Text);

    range:=Temsheet.Range[Temsheet.cells[TemInt,],Temsheet.cells[TemInt,]];//选定表格    range.select;

    range.merge;

    TemInt:=TemInt+;

    range:=Temsheet.Range[Temsheet.cells[TemInt,],Temsheet.cells[TemInt,]];//选定表格    range.select;

    range.merge;

    Range.Characters.Font.FontStyle :='加粗';

    Temsheet.Cells[TemInt,]:='总利润：';

    Temsheet.Cells[TemInt,]:=Trim(Edit3.Text);

    range:=Temsheet.Range[Temsheet.cells[TemInt,],Temsheet.cells[TemInt,]];//选定表格    range.select;

    range.merge;

    range:=Temsheet.Range[Temsheet.cells[,],Temsheet.cells[TemInt,]];//选定表格    range.borders.linestyle:=1;//华线    Application.ProcessMessages;

    Screen.Cursor:=CrDefault;

    FExcel.WorkBooks[].saveas(TemFileName);//保存文件    FExcel.workbooks[1].close; //关闭工作表    Application.ProcessMessages;

    MessageBox(Handle,'导出成功','提示',MB_OK);

    //FExcel.visible:=true;

    FExcel.quit; //关闭Excel

    FExcel := unassigned;

    shellexecute(,'open',PChar(ExtractFileName(TemFileName)),nil,PChar(ExtractFilePath(TemFileName)),SW_Show);

  end;

end;

四;

uses

  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

  Dialogs, ExtCtrls, Mask, ComCtrls, StdCtrls, Buttons, Grids, ValEdit, IdBaseComponent,

  CheckLst, excel97, ExcelXP, OleServer, comobj, excel2000, mmsystem,

  ADODB, DB, DBGrids, clipbrd;四;

procedure TFIND_FM.Button1Click(Sender: TObject);

var

  i,j : integer;

  reportname, wpath : string;

  ExApp1 : TExcelApplication;

  ExWrbk1 : TExcelWorkbook;

  ExWrst1 : TExcelWorksheet;

begin

  if Main_FM.ADOQuery_TEMP.IsEmpty then

    begin

    Showmessage('沒有可導出的資料!');

    Exit;

    end

  else

    begin

    Main_FM.SaveDialog1.FileName := 'qcreport';

    if  Main_FM.savedialog1.Execute then

      begin

        //savedialog1.FileName := formatdatetime('YYYYMMDDHHMMSS',now())+'md_orderqc_list.xls';

        reportname :=  formatdatetime('YYYYMMDDHHMMSS',now())+ExtractFileName(Main_FM.savedialog1.FileName);

        //reportname :=  formatdatetime('YYYYMMDDHHMMSS',now())+'';

        wpath := ExtractFilePath(Main_FM.savedialog1.FileName);

        //showmessage(wpath);

        try

          ExApp1 := TExcelApplication.Create(application);

          ExWrbk1 := TExcelWorkbook.Create(application);

          ExWrst1 := TExcelWorksheet.Create(application);

          ExApp1.Connect;

        except

          Showmessage('電腦沒裝Excel!無法導出!');

          Abort;

        end;

        try

          try

          ExApp1.Workbooks.Add(EmptyParam,);

          ExWrbk1.ConnectTo(ExApp1.Workbooks[]);

          ExWrst1.ConnectTo(ExWrbk1.Worksheets[] as _worksheet);

          Main_FM.ADOQuery_TEMP.First;

          for j :=  to Main_FM.ADOQuery_TEMP.FieldCount- do

            begin

            ExWrst1.Cells.Item[,j+] := Main_FM.ADOQuery_TEMP.Fields[j].DisplayName;

            //

            end;

          for i :=  to Main_FM.ADOQuery_TEMP.RecordCount+ do

            begin

              for j :=  to Main_FM.ADOQuery_TEMP.FieldCount- do

                begin

                ExWrst1.Cells.Item[i,j+] := Main_FM.ADOQuery_TEMP.Fields[j].Value;

                end;

              Main_FM.ADOQuery_TEMP.Next;

            end;

          ExWrst1.SaveAs(wpath+reportname);

          //ExWrst.SaveAs(formatdatetime('YYYYMMDDHHMMSS',now())+reportname);;

          Showmessage('數據已成功導出!');

          except

          Showmessage('導出失敗!');

          abort;

          end;

        finally

          ExApp1.Disconnect;

          ExApp1.Quit;

          ExApp1.Free;

          ExWrbk1.Free;

          ExWrst1.Free;

        end;

      end;

    end;

end;

delphi导出数据至Excel的三种方法及比较闲来无事，跑到网上搜集了几种导出DataSet至Excel的几种方法。另外使用GetTickcount函数计算时差，以便比较。（本来使用Timer控件，但是Timer不适合做高精度时间计算）使用TADOConnect，TADOQuery查询数据。方法五：   使用TADOQuery + Varaint方法，循环遍历数据集中数据，直接插入到Excel的WookBook单元。这是初学者最易懂和易接受的方法。在下面代码中没有仔细注意语法（比如没有使用try..finally结构体），如果需要使用，请注意：//使用ADO循环方式保存。

procedure TForm1.btn_WhileClick(Sender: TObject);

var

   Eclapp:variant;

   n:integer;

   filename: string;

   t1,t2: Int64;

begin

   Eclapp := CreateOleObject('Excel.Application');

   Eclapp.WorkBooks.Add;

   Eclapp.Visible:= False;

   filename :='d:\数据1.xls';

   lbl2.Caption := '';

   if FileExists(fileName) then

     DeleteFile(fileName);

   t1:= GetTickCount;

   qry1.DisableControls;

   qry1.First;

   n:=;

   while not qry1.Eof do

   begin

     eclapp.cells[n,] := qry1.Fields[].AsString;

     eclapp.cells[n,] := qry1.Fields[].AsString;

     eclapp.cells[n,] := qry1.Fields[].AsString;

     eclapp.cells[n,] := qry1.Fields[].AsString;

     //为了简单，只添加了4个栏位     inc(n);

     qry1.Next;

     application.ProcessMessages;

   end;

   qry1.EnableControls;

   t2:= GetTickCount;

   eclapp.visible := false;

   eclapp.Workbooks[].SaveAs(filename);

   Eclapp.Quit;

   Eclapp:= Unassigned;

   lbl2.Caption := IntToStr(t2 - t1);

end;

方法六：使用OLE方法导入。   先讲TDateSet中的数据保存为二维OLEVariant数组中，再保存到Excel  Sheet中  ///使用OLE方式保存。

procedure

 TForm1.btn_OleVariantClick(Sender: TObject);

var

fileName: string;

xlApp, Sheet: OleVariant;

rowCount, Colcount, index: Integer;

t1,t2: Int64;

function RefToCell(RowID, ColID: Integer): string;

var

    ACount, APos: Integer;

begin

    ACount := ColID div ;

    APos := ColID mod ;

    if APos =  then

    begin

      ACount := ACount - ;

      APos := ;

    end;

    if ACount =  then

      Result := Chr(Ord('A') + ColID - ) + IntToStr(RowID);

    if ACount =  then

      Result := 'A' + Chr(Ord('A') + APos - ) + IntToStr(RowID);

    if ACount >  then

      Result := Chr(Ord('A') + ACount - ) + Chr(Ord('A') + APos - ) + IntToStr(RowID);

end;

function getData(ds: TDataSet): OleVariant;

var

    Data: OLEVariant;

    i,j : Integer;

begin

    rowCount := ds.RecordCount;

    colCount := ds.FieldCount;

    Data := VarArrayCreate([, rowCount + , , colCount], varVariant); //1，rowCount

表示第一维数组的上下标，，colCount表示第二维数组的上下标    i := ;

    for j :=  to colCount -  do

    begin

      if not ds.Fields[j].Visible then

        continue;

      Data[i,j + ] := ds.Fields[j].DisplayLabel;

    end;

    Inc(i);

    ds.DisableControls;

    try

      ds.First;

      while not ds.Eof do

      begin

        for j :=  to colCount -  do

        begin

          Data[i,j + ] := ds.Fields[j].AsString;

        end;

        Inc(i);

        ds.Next;

        Application.ProcessMessages;

      end;

    finally

      ds.EnableControls;

    end;

    result := Data;

end;

begin

fileName := 'd:\数据.xls';

lbl1.Caption := '';

t1:= GetTickCount;//开始计时if FileExists(fileName) then

    DeleteFile(fileName);

xlApp := CreateOleObject('Excel.Application');

try

    XLApp.Visible := False;

    XLApp.DisplayAlerts := False;

    XLApp.Workbooks.Add;

    // 删除多余的 worksheet

    for index := XLApp.SheetsInNewWorkbook downto  do

    begin

      XLApp.Workbooks[].Worksheets[index].Delete;

    end;

    Sheet := XLApp.Workbooks[].Worksheets[];

    index := ;

    if index <>  then

      Sheet := XLApp.Workbooks[].Worksheets.Add;

    Sheet.Name := qry1.Name;

    //Sheet.Columns.NumberFormatLocal := '@'; //设置单元格式为文本    Sheet.Range[RefToCell(1, 1), RefToCell(rowCount + 1, colCount)].Value := getData(qry1);

    XLApp.Workbooks[].SaveAs(fileName);

finally

    if not VarIsEmpty(XLApp) then

    begin

      XLApp.Quit;

      XLAPP := Unassigned;

      Sheet := Unassigned;

      application.ProcessMessages;

      t2:= GetTickCount;

      lbl1.Caption := IntToStr( t2 - t1);

    end;

end;

end;

方法七：现在最流行的文件流方法

.....

var

Form1: TForm1;

arXlsBegin: array[..] of Word = ($, , , $, , );

arXlsEnd: array[..] of Word = ($0A, );

arXlsString: array[..] of Word = ($, , , , , );

arXlsNumber: array[..] of Word = ($, , , , );

arXlsInteger: array[..] of Word = ($27E, , , , );

arXlsBlank: array[..] of Word = ($, , , , $);

Procedure ExportExcelFile(FileName: string; bWriteTitle: Boolean; aDataSet: TDataSet);

implementation

{$R *.dfm}

//使用文件流procedure incColRow; //增加行列号begin

    if Col = ADataSet.FieldCount -  then

      begin

        Inc(Row);

        Col :=;

      end

    else

      Inc(Col);

end;

procedure WriteStringCell(AValue: string);//写字符串数据var

L: Word;

begin

     L := Length(AValue);

     arXlsString[] :=  + L;

     arXlsString[] := Row;

     arXlsString[] := Col;

     arXlsString[] := L;

     aFileStream.WriteBuffer(arXlsString, SizeOf (arXlsString));

     aFileStream.WriteBuffer(Pointer(AValue)^, L);

     IncColRow;

end;

procedure WriteIntegerCell(AValue: integer);//写整数var

    V: Integer;

begin

    arXlsInteger[] := Row;

    arXlsInteger[] := Col;

    aFileStream.WriteBuffer(arXlsInteger, SizeOf(arXlsInteger));

    V := (AValue shl ) or ;

    aFileStream.WriteBuffer(V, );

    IncColRow;

end;

procedure WriteFloatCell(AValue: double );//写浮点数begin

     arXlsNumber[] := Row;

     arXlsNumber[] := Col;

     aFileStream.WriteBuffer(arXlsNumber, SizeOf(arXlsNumber));

     aFileStream.WriteBuffer(AValue, );

     IncColRow;

end;

Procedure ExportExcelFile(FileName: string; bWriteTitle: Boolean; aDataSet: TDataSet);

var

i,j: integer;

Col , row: word;

ABookMark: TBookMark;

aFileStream: TFileStream;

//......

//......

begin

   if FileExists(FileName) then DeleteFile(FileName); //文件存在，先删除      aFileStream := TFileStream.Create(FileName, fmCreate);

   Try    //写文件头　      aFileStream.WriteBuffer(arXlsBegin, SizeOf(arXlsBegin));   //写列头

　      Col := ; Row := ;

      if bWriteTitle then

      begin

        for i :=  to aDataSet.FieldCount -  do

          WriteStringCell(aDataSet.Fields[i].FieldName);

      end;       //写数据集中的数据

　　      aDataSet.DisableControls;

      //ABookMark := aDataSet.GetBookmark;

      aDataSet.First ;

      while not aDataSet.Eof do

      begin

        for i :=  to aDataSet.FieldCount -  do

        case ADataSet.Fields[i].DataType of

              ftSmallint, ftInteger, ftWord, ftAutoInc, ftBytes:

              WriteIntegerCell(aDataSet.Fields[i].AsInteger);

              ftFloat, ftCurrency, ftBCD:

              WriteFloatCell(aDataSet.Fields[i].AsFloat)

        else

              WriteStringCell(aDataSet.Fields[i].AsString);

        end;

        aDataSet.Next;

        Application.ProcessMessages;

      end;

      //写文件尾

　      AFileStream.WriteBuffer(arXlsEnd, SizeOf(arXlsEnd));

      //if ADataSet.BookmarkValid(ABookMark) then aDataSet.GotoBookmark(ABookMark);

   Finally

     AFileStream.Free;

     ADataSet.EnableControls;

   end;

end;

//调用：procedure TForm1.btn_FileStreamClick(Sender: TObject);

var

t1,t2: Int64;

begin

lbl3.Caption := '';

t1:= GetTickCount;

ExportExcelFile('d:\数据2.xls',true,qry1);

t2:= GetTickCount;

lbl3.Caption:= IntToStr(t2 - t1);

end;

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