我用这个函数将导入excel中出现这个问题，请帮忙看看

Question

unit DS2Excel;interfaceUses
  DB, Classes;var
  CXlsBof: array[0..5] of Word = ($809, 8, 0, $10, 0, 0);
  CXlsEof: array[0..1] of Word = ($0A, 00);
  CXlsLabel: array[0..5] of Word = ($204, 0, 0, 0, 0, 0);
  CXlsNumber: array[0..4] of Word = ($203, 14, 0, 0, 0);
  CXlsRk: array[0..4] of Word = ($27E, 10, 0, 0, 0);
  CXlsBlank: array[0..4] of Word = ($201, 6, 0, 0, $17);Type
  TDS2Excel = Class(TObject)
  Private
    FCol: word;
    FRow: word;
    FDataSet: TDataSet;
    Stream: TStream;
    FWillWriteHead: boolean;
    FBookMark: TBook;
    procedure IncColRow;
    procedure WriteBlankCell;
    procedure WriteFloatCell(const AValue: Double);
    procedure WriteIntegerCell(const AValue: Integer);
    procedure WriteStringCell(const AValue: string);
    procedure WritePrefix;
    procedure WriteSuffix;
    procedure WriteTitle;
    procedure WriteDataCell;    procedure Save2Stream(aStream: TStream);
  Public
    procedure Save2File(FileName: string; WillWriteHead: Boolean);
    Constructor Create(aDataSet: TDataSet);
  end;implementationuses SysUtils;{ TDS2Excel }constructor TDS2Excel.Create(aDataSet: TDataSet);
begin
  inherited Create;
  FDataSet := aDataSet;
end;procedure TDS2Excel.IncColRow;
begin
  if FCol = FDataSet.FieldCount - 1 then
  begin
    Inc(FRow);
    FCol :=0;
  end
  else
    Inc(FCol);
end;procedure TDS2Excel.Save2File(FileName: string; WillWriteHead: Boolean);
var
  aFileStream: TFileStream;
begin
  FWillWriteHead := WillWriteHead;
  if FileExists(FileName) then DeleteFile(FileName);
  aFileStream := TFileStream.Create(FileName, fmCreate);
  Try
    Save2Stream(aFileStream);
  Finally
    aFileStream.Free;
  end;
end;procedure TDS2Excel.Save2Stream(aStream: TStream);
begin
  FCol := 0;
  FRow := 0;
  Stream := aStream;
  WriteDataCell;
end;procedure TDS2Excel.WriteBlankCell;
begin
  CXlsBlank[2] := FRow;
  CXlsBlank[3] := FCol;
  Stream.WriteBuffer(CXlsBlank, SizeOf(CXlsBlank));
  IncColRow;
end;procedure TDS2Excel.WriteDataCell;
var
  n: word;
begin
  WritePrefix;
  if FWillWriteHead then WriteTitle;
  FDataSet.DisableControls;
  FBookMark := FDataSet.GetBook;
  FDataSet.First;
  while not FDataSet.Eof do
  begin
    for n := 0 to FDataSet.FieldCount - 1 do
    begin
      //If FDataSet.Fields[n].Tag <> 0 Then
      //Begin
        if FDataSet.Fields[n].IsNull then
          WriteBlankCell
        else begin
          case FDataSet.Fields[n].DataType of
            ftSmallint, ftInteger, ftWord, ftAutoInc, ftBytes:
                WriteIntegerCell(FDataSet.Fields[n].AsInteger);
            ftFloat, ftCurrency, ftBCD:
                WriteFloatCell(FDataSet.Fields[n].AsFloat);
          else
            WriteStringCell(FDataSet.Fields[n].AsString);
          end;
        end;
      //End;  
    end;
    FDataSet.Next;
  end;
  WriteSuffix;
  if FDataSet.BookValid(FBookMark) then FDataSet.GotoBook(FBookMark);
  FDataSet.EnableControls;
end;procedure TDS2Excel.WriteFloatCell(const AValue: Double);
begin
  CXlsNumber[2] := FRow;
  CXlsNumber[3] := FCol;
  Stream.WriteBuffer(CXlsNumber, SizeOf(CXlsNumber));
  Stream.WriteBuffer(AValue, 8);
  IncColRow;
end;procedure TDS2Excel.WriteIntegerCell(const AValue: Integer);
var
  V: Integer;
begin
  CXlsRk[2] := FRow;
  CXlsRk[3] := FCol;
  Stream.WriteBuffer(CXlsRk, SizeOf(CXlsRk));
  V := (AValue shl 2) or 2;
  Stream.WriteBuffer(V, 4);
  IncColRow;
end;
procedure TDS2Excel.WritePrefix;
begin
  Stream.WriteBuffer(CXlsBof, SizeOf(CXlsBof));
end;procedure TDS2Excel.WriteStringCell(const AValue: string);
var
  L: Word;
begin
  L := Length(AValue);
  CXlsLabel[1] := 8 + L;
  CXlsLabel[2] := FRow;
  CXlsLabel[3] := FCol;
  CXlsLabel[5] := L;
  Stream.WriteBuffer(CXlsLabel, SizeOf(CXlsLabel));
  Stream.WriteBuffer(Pointer(AValue)^, L);
  IncColRow;
end;
procedure TDS2Excel.WriteSuffix;
begin
  Stream.WriteBuffer(CXlsEof, SizeOf(CXlsEof));
end;procedure TDS2Excel.WriteTitle;
var
  n: word;
begin
  for n := 0 to FDataSet.FieldCount - 1 do
  Begin
    //If FDataSet.Fields[n].Tag <>0 Then
      WriteStringCell(FDataSet.Fields[n].DisplayName);
  End;  
end;end.在将access中数据导入excel的时候memo字段有一些字符显示不出来，请高手帮忙看看

Answer 1

case FDataSet.Fields[n].DataType of
            ftSmallint, ftInteger, ftWord, ftAutoInc, ftBytes:
                WriteIntegerCell(FDataSet.Fields[n].AsInteger);
            ftFloat, ftCurrency, ftBCD:
                WriteFloatCell(FDataSet.Fields[n].AsFloat);
          else
            WriteStringCell(FDataSet.Fields[n].AsString);關鍵在最後一行, 你檢查 FDataSet.Fields[n].AsString 能不能將你的memo字段顯示出來, 如果不行, 修改你的代碼

Answer 2

是可以显示出来的，但是写入excel的时候，后面会变成一些方框