var
  List: TStringList;
  i: Integer;
begin
  List := TStringList.Create;
  List.Add('Test1');            {添加}
  List.Add('Test2');
  List.Exchange(0,1);           {置换}
  List.Insert(0,'Test3');      {插入}
  i := List.IndexOf('Test1'); {首次出现的位置}
  List.Sort;                       {排序}
  List.Sorted := True;	       {指定排序}
  List.Count;                {总数}
  List.Text;                 {文本集合}
  List.Delete(0);            {删除, 0是第一个数据}
  List.LoadFromFile('c:\test.txt');{打开}
  List.SaveToFile('c:\test.txt'); {保存}
  List.Clear;                {清空}
  List.Free;                 {释放}
end;　　

var
  List: TStringList;
begin
  List := TStringList.Create;
  List.CommaText := 'aa,bb,cc';
  ShowMessage(IntToStr(List.Count)); //3
  ShowMessage(List[0]); //aa
  List.Free;
end;

var
  List: TStringList;
begin
  List := TStringList.Create;
  List.Delimiter := '|';
  List.DelimitedText := 'aa|bb|cc';
  ShowMessage(IntToStr(List.Count)); //3
  ShowMessage(List[0]); //aa
  List.Free;
end;

var
  List: TStringList;
begin
  List := TStringList.Create;

  List.Add('aa=100');
  List.Add('bb=200');
  List.Add('cc=300');

  ShowMessage(List.Names[1]); //bb
  ShowMessage(List.ValueFromIndex[1]); //200
  ShowMessage(List.Values['bb']); //200

  //通过ValueFromIndex 赋值:
  List.ValueFromIndex[1] := '400';
  ShowMessage(List[1]); //bb=400

  //通过 Values 赋值:
  List.Values['bb'] := '500';
  ShowMessage(List[1]); //bb=500

  List.Free;
end;

var
  List: TStringList;
begin
  List := TStringList.Create;

  List.Add('aa');

  List.Sorted := True; //先指定排序
  List.Duplicates := dupIgnore; //重复值忽略

  List.Add('aa');

  ShowMessage(List.Text); //aa

  List.Free;
end;

{排序函数}
function DescCompareStrings(List: TStringList; Index1, Index2: Integer): Integer;
begin
  Result := -AnsiCompareText(List[Index1], List[Index2]);
end;

procedure TForm1.Button1Click(Sender: TObject);
var
  List: TStringList;
begin
  List := TStringList.Create;
  List.Add('bb');
  List.Add('cc');
  List.Add('aa');
  //未排序
  ShowMessage(List.Text); //bb cc aa
  //排序
  List.Sort;
  ShowMessage(List.Text); //aa bb cc
  //倒排序
  List.CustomSort(DescCompareStrings); //调用排序函数
  ShowMessage(List.Text); //cc bb aa
end;