delphi Query1 导出csv txt  
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delphi Query1 导出csv txt


var
  Stream: TFileStream;
  i: Integer;
  OutLine: string;
  sTemp: string;
begin
  Stream := TFileStream.Create('C:\Data\YourFile.csv', fmCreate);
  try
    while not Query1.Eof do
    begin
      // You'll need to add your special handling here where OutLine is built
      OutLine := '';
      for i := 0 to Query.FieldCount - 1 do
      begin
        sTemp := Query.Fields[i].AsString;
        // Special handling to sTemp here
        OutLine := OutLine + sTemp + ',';
      end;
      // Remove final unnecessary ',' delphitop.com
      SetLength(OutLine, Length(OutLine) - 1);
      // Write line to file
      Stream.Write(OutLine[1], Length(OutLine) * SizeOf(Char));
      // Write line ending
      Stream.Write(sLineBreak, Length(sLineBreak));
      Query1.Next;
    end;
  finally
    Stream.Free;  // Saves the file
  end;
end;

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