//TStringList 常用方法与属性:var  List: TStringList;  i: Integer;begin  List := TStringList.Create;  List.Add('Strings1');           {
    添加}  List.Add('Strings2');  List.Exchange(0,1);             {
    置换}  List.Insert(0,'Strings3');      {
    插入}  i := List.IndexOf('Strings1');  {
    第一次出现的位置}  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:\tmp.txt');{
    打开}  List.SaveToFile('c:\tmp.txt');  {
    保存}  List.Clear;                     {
    清空}  List.Free;                      {
    释放}end;--------------------------------------------------------------------------------//读入字符串var  List: TStringList;begin  List := TStringList.Create;  List.CommaText := 'aaa,bbb,ccc,ddd';  //相当于: List.Text := 'aaa' + #13#10 + 'bbb' + #13#10' + 'ccc' + '#13#10' + 'ddd';  ShowMessage(IntToStr(List.Count));  //4  ShowMessage(List[0]);  //aaa  List.Free;end;--------------------------------------------------------------------------------//置换分隔符var  List: TStringList;begin  List := TStringList.Create;  List.Delimiter := '|';  List.DelimitedText := 'aaa|bbb|ccc|ddd';  ShowMessage(IntToStr(List.Count));  //4  ShowMessage(List[0]);  //aaa  List.Free;end;--------------------------------------------------------------------------------//类似的哈希表操作法var  List: TStringList;begin  List := TStringList.Create;  List.Add('aaa=111');  List.Add('bbb=222');  List.Add('ccc=333');  List.Add('ddd=444');  List.Add('eee=');  List.Add('fff');  ShowMessage(List.Names[1]);  //bbb  ShowMessage(List.ValueFromIndex[1]);  //222  ShowMessage(List.Values['bbb']);  //222  //ValueFromIndex 可以赋值:  List.ValueFromIndex[1] := '2';  ShowMessage(List[1]);  //bbb=2  //可以通过 Values 赋值:  List.Values['bbb'] := '22';  ShowMessage(List[1]);  //bbb=22  ShowMessage(List.Names[4]);  //eee  ShowMessage(List.ValueFromIndex[4]);  //  ShowMessage(List.Values['eee']);  //  ShowMessage(List.Names[5]);  //  ShowMessage(List.ValueFromIndex[5]);  //  ShowMessage(List.Values['fff']);  //  List.Free;end;--------------------------------------------------------------------------------//避免重复值var  List: TStringList;begin  List := TStringList.Create;  List.Add('aaa');  List.Sorted := True;  //需要先指定排序  List.Duplicates := dupIgnore;  //如有重复值则放弃  List.Add('aaa');  ShowMessage(List.Text);  //aaa  //Duplicates 有3个可选值:  //dupIgnore: 放弃;  //dupAccept: 结束;  //dupError: 提示错误.  List.Free;end;--------------------------------------------------------------------------------//排序与倒排序{
    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('bbb');  List.Add('ccc');  List.Add('aaa');  {
    未排序}  ShowMessage(List.Text);  //bbb ccc aaa  {
    排序}  List.Sort;  ShowMessage(List.Text);  //aaa bbb ccc  {
    倒排序}  List.CustomSort(DescCompareStrings);  //调用排序函数  ShowMessage(List.Text);  //ccc bbb aaa  //假如:  List.Sorted := True;  List.Add('999');  List.Add('000');  List.Add('zzz');  ShowMessage(List.Text);  //000 999 aaa bbb ccc zzzend;