在通常情况下使用DBGRIDEH导出的到CSV中的数据是这个样子的 "a","b","c" 可能我们并不希望它这样显示，有可能希望它显示成种状态 a,b,c 如果想这样，我们可以修改DBGRIDEH里面的DBGridEhImpExp.pas文件 具体修改如下：增加一个自己的导出到CSV的类 { TMyDBGridEhExportAsCVS }
TMyDBGridEhExportAsCVS = class(TDBGridEhExportAsText)
private
FSeparator: Char;
protected
procedure CheckFirstCell; override;
procedure WriteTitle(ColumnsList: TColumnsEhList); override;
procedure WriteDataCell(Column: TColumnEh; FColCellParamsEh: TColCellParamsEh); override;
procedure WriteFooterCell(DataCol, Row: Integer; Column: TColumnEh; AFont: TFont;
Background: TColor; Alignment: TAlignment; Text: String); override;
public
constructor Create; override;
property Separator: Char read FSeparator write FSeparator;
end;
{ TMyDBGridEhExportAsCVS }
procedure TMyDBGridEhExportAsCVS.CheckFirstCell;
var s: String;
begin
if FirstCell = False then
begin
s := Separator;
StreamWriteString(Stream, s);
// Stream.Write(PChar(s)^, Length(s))
end else
FirstCell := False;
end;
constructor TMyDBGridEhExportAsCVS.Create;
begin
Separator := ',';
inherited Create;
end;
procedure TMyDBGridEhExportAsCVS.WriteDataCell(Column: TColumnEh; FColCellParamsEh: TColCellParamsEh);
var s: String;
begin
CheckFirstCell;
s := FColCellParamsEh.Text;
StreamWriteString(Stream, s);
// Stream.Write(PChar(s)^, Length(s));
end;
procedure TMyDBGridEhExportAsCVS.WriteFooterCell(DataCol, Row: Integer;
Column: TColumnEh; AFont: TFont; Background: TColor;
Alignment: TAlignment; Text: String);
var s: String;
begin
CheckFirstCell;
s := Text;
StreamWriteString(Stream, s);
// Stream.Write(PChar(s)^, Length(s));
end;
procedure TMyDBGridEhExportAsCVS.WriteTitle(ColumnsList: TColumnsEhList);
var i: Integer;
s: String;
begin
CheckFirstRec;
for i := 0 to ColumnsList.Count - 1 do
begin
s := ColumnsList[i].Title.Caption;
if i <> ColumnsList.Count - 1 then
s := s + Separator;
StreamWriteString(Stream, s);
// Stream.Write(PChar(s)^, Length(s));
end;
end;
Good luck! 
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