delphi 导出到excel的7种方法
2021-07-10 02:04
阅读：298
第一种方法delphi 快速导出excel
uses ComObj,clipbrd; function ToExcel(sfilename:string; ADOQuery:TADOQuery):boolean; const xlNormal=-4143; 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[1]; 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+#9 ; Application.ProcessMessages; end; tsList.Add(s); try try ADOQuery.First; While Not ADOQuery.Eof do begin s:=‘‘; for y:=0 to ADOQuery.FieldCount-1 do begin s:=s+ADOQuery.Fields[y].AsString+#9; 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)-3,4)‘.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[1].range[‘A1:c1‘].Merge(True); Excelid.WorkSheets[1].Cells[1,1].Value :=‘部门编码表‘ ; Excelid.worksheets[1].Range[‘a1:a1‘].HorizontalAlignment := $FFFFEFF4; Excelid.worksheets[1].Range[‘a1:a1‘].VerticalAlignment := $FFFFEFF4; Excelid.WorkSheets[1].Cells[2,1].Value := ‘组别编号‘; Excelid.WorkSheets[1].Cells[2,2].Value := ‘公司编号‘; Excelid.WorkSheets[1].Cells[2,3].Value := ‘组别名称‘; Excelid.worksheets[1].Range[‘A1:c1‘].Font.Name := ‘宋体‘; Excelid.worksheets[1].Range[‘A1:c1‘].Font.Size := 9; Excelid.worksheets[1].range[‘A1:c2‘].font.bold:=true; Excelid.worksheets[1].Range[‘A2:c2‘].Font.Size := 9; Excelid.worksheets[1].Range[‘A2:c2‘].HorizontalAlignment := $FFFFEFF4; Excelid.worksheets[1].Range[‘A2:c2‘].VerticalAlignment := $FFFFEFF4; h:=3; ADOQuery1.First; while not ADOQuery1.Eof do begin Excelid.WorkSheets[1].Cells[h,1].Value := Adoquery1.FieldByName(‘Fdept_id‘).AsString; Excelid.WorkSheets[1].Cells[h,2].Value := Adoquery1.FieldByName(‘Ffdept_id‘).AsString; Excelid.WorkSheets[1].Cells[h,3].Value := Adoquery1.FieldByName(‘Fdept_name‘).AsString; Inc(h); Adoquery1.Next; end; s := ‘A2:f‘+ IntToStr(k+2); Excelid.worksheets[1].Range[s].Font.Name := ‘宋体‘; Excelid.worksheets[1].Range[s].Font.size := 9; Excelid.worksheets[1].Range[s].Borders.LineStyle := 1; 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:=0; FExcel:= CreateoleObject(‘excel.Application‘); FWorkBook:=FExcel.WorkBooks.Add(-4167); //新的工作表 Temsheet:=FWorkBook.Worksheets.Add; Temsheet.Name:=‘利润统计‘; Temsheet.Select; Temsheet.Columns[1].ColumnWidth:=4;//设置列宽度 Temsheet.Columns[2].ColumnWidth:=10; Temsheet.Columns[3].ColumnWidth:=16; Temsheet.Columns[4].ColumnWidth:=10; Temsheet.Columns[5].ColumnWidth:=10; Temsheet.Columns[6].ColumnWidth:=10; Temsheet.Columns[7].ColumnWidth:=10; Temsheet.Columns[8].ColumnWidth:=10; Temsheet.Columns[9].ColumnWidth:=20; Temsheet.Columns[10].ColumnWidth:=15; range:=Temsheet.Range[Temsheet.cells[1,1],Temsheet.cells[5,2]];//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:=20; FPicture.Top:=5; FPicture.width:=50; FPicture.height:=50; FPicture:=null; range:=Temsheet.Range[Temsheet.cells[2,3],Temsheet.cells[3,4]];//选定表格 range.select; range.merge; Range.Characters.Font.FontStyle :=‘加粗‘; Temsheet.Cells[2,3].HorizontalAlignment:=-4108; //字居中 Temsheet.Cells[2,3]:=ComSName; range:=Temsheet.Range[Temsheet.cells[4,3],Temsheet.cells[4,4]];//选定表格 range.select; range.merge; Temsheet.Cells[4,3].HorizontalAlignment:=-4108; //字居中 Temsheet.Cells[4,3]:=ComEName; range:=Temsheet.Range[Temsheet.cells[2,5],Temsheet.cells[2,6]];//选定表格 range.select; range.merge; Temsheet.Cells[2,5].HorizontalAlignment:=-4108; //字居中 Temsheet.Cells[2,5]:=ComName; Temsheet.Cells[3,5]:=‘联系人：‘; Temsheet.Cells[4,5]:=‘电话：‘; Temsheet.Cells[4,6]:=ComPhone; Temsheet.Cells[5,5]:=‘传真：‘; Temsheet.Cells[5,6]:=ComFax; range:=Temsheet.Range[Temsheet.cells[6,1],Temsheet.cells[6,10]];//选定表格 range.select; range.merge; range:=Temsheet.Range[Temsheet.cells[7,1],Temsheet.cells[7,2]];//选定表格 range.select; range.merge; Range.Characters.Font.FontStyle :=‘加粗‘; Temsheet.Cells[7,1]:=‘入库信息：‘; range:=Temsheet.Range[Temsheet.cells[7,3],Temsheet.cells[7,10]];//选定表格 range.select; range.merge; Temsheet.Cells[8,1]:=‘序号‘; Temsheet.Cells[8,1].HorizontalAlignment:=-4108; //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[8,i+2]:=DBGrid1.Columns[i].Title.Caption; Temsheet.Cells[8,i+2].HorizontalAlignment:=-4108; //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:=0; DBGrid1.DataSource.DataSet.First; while not DBGrid1.DataSource.DataSet.Eof do begin Temsheet.Cells[9+j,1].Value:=j+1; Temsheet.Cells[9+j,1].HorizontalAlignment:=-4108; //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[9+j,i+2].Value:=DBGrid1.Fields[i].AsString; range:=Temsheet.Range[Temsheet.cells[9+j,i+2],Temsheet.cells[9+j,i+2]];//选定表格 range.borders.linestyle:=1;//华线 end; DBGrid1.DataSource.DataSet.Next; j:=j+1; end; TemInt:=9+ DBGrid1.DataSource.DataSet.RecordCount; range:=Temsheet.Range[Temsheet.cells[TemInt,1],Temsheet.cells[TemInt,10]];//选定表格 range.select; range.merge; TemInt:=TemInt+1; range:=Temsheet.Range[Temsheet.cells[TemInt,1],Temsheet.cells[TemInt,2]];//选定表格 range.select; range.merge; Range.Characters.Font.FontStyle :=‘加粗‘; Temsheet.Cells[TemInt,1]:=‘出库信息：‘; range:=Temsheet.Range[Temsheet.cells[TemInt,3],Temsheet.cells[TemInt,10]];//选定表格 range.select; range.merge; TemInt:=TemInt+1; Temsheet.Cells[TemInt,1]:=‘序号‘; Temsheet.Cells[TemInt,1].HorizontalAlignment:=-4108; //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+2]:=DBGrid2.Columns[i].Title.Caption; Temsheet.Cells[TemInt,i+2].HorizontalAlignment:=-4108; //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+1; ////////////////////////////////////////////// j:=0; DBGrid2.DataSource.DataSet.First; while not DBGrid2.DataSource.DataSet.Eof do begin Temsheet.Cells[TemInt+j,1].Value:=j+1; Temsheet.Cells[TemInt+j,1].HorizontalAlignment:=-4108; //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+2].Value:=DBGrid2.Fields[i].AsString; range:=Temsheet.Range[Temsheet.cells[TemInt+j,i+2],Temsheet.cells[TemInt+j,i+2]];//选定表格 range.borders.linestyle:=1;//华线 end; DBGrid2.DataSource.DataSet.Next; j:=j+1; end; TemInt:=TemInt+ DBGrid2.DataSource.DataSet.RecordCount; TemInt:=TemInt+1; range:=Temsheet.Range[Temsheet.cells[TemInt,1],Temsheet.cells[TemInt,10]];//选定表格 range.select; range.merge; TemInt:=TemInt+1; range:=Temsheet.Range[Temsheet.cells[TemInt,1],Temsheet.cells[TemInt,2]];//选定表格 range.select; range.merge; Range.Characters.Font.FontStyle :=‘加粗‘; Temsheet.Cells[TemInt,1]:=‘入库总额：‘; Temsheet.Cells[TemInt,3]:=Trim(Edit1.Text); range:=Temsheet.Range[Temsheet.cells[TemInt,4],Temsheet.cells[TemInt,10]];//选定表格 range.select; range.merge; TemInt:=TemInt+1; range:=Temsheet.Range[Temsheet.cells[TemInt,1],Temsheet.cells[TemInt,2]];//选定表格 range.select; range.merge; Range.Characters.Font.FontStyle :=‘加粗‘; Temsheet.Cells[TemInt,1]:=‘出库总额：‘; Temsheet.Cells[TemInt,3]:=Trim(Edit2.Text); range:=Temsheet.Range[Temsheet.cells[TemInt,4],Temsheet.cells[TemInt,10]];//选定表格 range.select; range.merge; TemInt:=TemInt+1; range:=Temsheet.Range[Temsheet.cells[TemInt,1],Temsheet.cells[TemInt,2]];//选定表格 range.select; range.merge; Range.Characters.Font.FontStyle :=‘加粗‘; Temsheet.Cells[TemInt,1]:=‘总利润：‘; Temsheet.Cells[TemInt,3]:=Trim(Edit3.Text); range:=Temsheet.Range[Temsheet.cells[TemInt,4],Temsheet.cells[TemInt,10]];//选定表格 range.select; range.merge; range:=Temsheet.Range[Temsheet.cells[7,1],Temsheet.cells[TemInt,10]];//选定表格 range.borders.linestyle:=1;//华线 Application.ProcessMessages; Screen.Cursor:=CrDefault; FExcel.WorkBooks[1].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(0,‘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,0); ExWrbk1.ConnectTo(ExApp1.Workbooks[1]); ExWrst1.ConnectTo(ExWrbk1.Worksheets[1] as _worksheet); Main_FM.ADOQuery_TEMP.First; for j := 0 to Main_FM.ADOQuery_TEMP.FieldCount-1 do begin ExWrst1.Cells.Item[1,j+1] := Main_FM.ADOQuery_TEMP.Fields[j].DisplayName; // end; for i := 2 to Main_FM.ADOQuery_TEMP.RecordCount+1 do begin for j := 0 to Main_FM.ADOQuery_TEMP.FieldCount-1 do begin ExWrst1.Cells.Item[i,j+1] := 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 := ‘0‘; if FileExists(fileName) then DeleteFile(fileName); t1:= GetTickCount; qry1.DisableControls; qry1.First; n:=2; while not qry1.Eof do begin eclapp.cells[n,1] := qry1.Fields[0].AsString; eclapp.cells[n,2] := qry1.Fields[1].AsString; eclapp.cells[n,3] := qry1.Fields[2].AsString; eclapp.cells[n,4] := qry1.Fields[3].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[1].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 26; APos := ColID mod 26; if APos = 0 then begin ACount := ACount - 1; APos := 26; end; if ACount = 0 then Result := Chr(Ord(‘A‘) + ColID - 1) + IntToStr(RowID); if ACount = 1 then Result := ‘A‘ + Chr(Ord(‘A‘) + APos - 1) + IntToStr(RowID); if ACount > 1 then Result := Chr(Ord(‘A‘) + ACount - 1) + Chr(Ord(‘A‘) + APos - 1) + IntToStr(RowID); end; function getData(ds: TDataSet): OleVariant; var Data: OLEVariant; i,j : Integer; begin rowCount := ds.RecordCount; colCount := ds.FieldCount; Data := VarArrayCreate([1, rowCount + 1, 1, colCount], varVariant); //1，rowCount 表示第一维数组的上下标，1，colCount表示第二维数组的上下标 i := 1; for j := 0 to colCount - 1 do begin if not ds.Fields[j].Visible then continue; Data[i,j + 1] := ds.Fields[j].DisplayLabel; end; Inc(i); ds.DisableControls; try ds.First; while not ds.Eof do begin for j := 0 to colCount - 1 do begin Data[i,j + 1] := 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 := ‘0‘; 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 2 do begin XLApp.Workbooks[1].Worksheets[index].Delete; end; Sheet := XLApp.Workbooks[1].Worksheets[1]; index := 1; if index 0 then Sheet := XLApp.Workbooks[1].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[1].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[0..5] of Word = ($809, 8, 0, $10, 0, 0); arXlsEnd: array[0..1] of Word = ($0A, 00); arXlsString: array[0..5] of Word = ($204, 0, 0, 0, 0, 0); arXlsNumber: array[0..4] of Word = ($203, 14, 0, 0, 0); arXlsInteger: array[0..4] of Word = ($27E, 10, 0, 0, 0); arXlsBlank: array[0..4] of Word = ($201, 6, 0, 0, $17); Procedure ExportExcelFile(FileName: string; bWriteTitle: Boolean; aDataSet: TDataSet); implementation {$R *.dfm} //使用文件流procedure incColRow; //增加行列号begin if Col = ADataSet.FieldCount - 1 then begin Inc(Row); Col :=0; end else Inc(Col); end; procedure WriteStringCell(AValue: string);//写字符串数据var L: Word; begin L := Length(AValue); arXlsString[1] := 8 + L; arXlsString[2] := Row; arXlsString[3] := Col; arXlsString[5] := 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[2] := Row; arXlsInteger[3] := Col; aFileStream.WriteBuffer(arXlsInteger, SizeOf(arXlsInteger)); V := (AValue shl 2) or 2; aFileStream.WriteBuffer(V, 4); IncColRow; end; procedure WriteFloatCell(AValue: double );//写浮点数begin arXlsNumber[2] := Row; arXlsNumber[3] := Col; aFileStream.WriteBuffer(arXlsNumber, SizeOf(arXlsNumber)); aFileStream.WriteBuffer(AValue, 8); 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 := 0; Row := 0; if bWriteTitle then begin for i := 0 to aDataSet.FieldCount - 1 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 := 0 to aDataSet.FieldCount - 1 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 := ‘0‘; t1:= GetTickCount; ExportExcelFile(‘d:\数据2.xls‘,true,qry1); t2:= GetTickCount; lbl3.Caption:= IntToStr(t2 - t1); end;
评论
亲，登录后才可以留言！