unit Unit1;interfaceuses  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,  Dialogs, StdCtrls;type  TForm1 = class(TForm)    Memo1: TMemo;    Button1: TButton;    procedure Button1Click(Sender: TObject);    procedure FormCreate(Sender: TObject);  end;var  Form1: TForm1;implementation{$R *.dfm}{给 Memo 排序的函数}procedure SortMemo(const m: TMemo);begin  with TStringList.Create do  begin    Sorted := True;    Text := m.Text;    m.Text := Text;    Free;  end;end;{测试}procedure TForm1.FormCreate(Sender: TObject);begin  Memo1.Align := alLeft;  Memo1.Lines.CommaText := 'zzz,xxx,yyy,aaa,ccc,bbb,333,222,111';  Button1.Caption := '排序';end;procedure TForm1.Button1Click(Sender: TObject);begin  SortMemo(Memo1);end;end.

object Form1: TForm1  Left = 0  Top = 0  Caption = 'Form1'  ClientHeight = 143  ClientWidth = 166  Color = clBtnFace  Font.Charset = DEFAULT_CHARSET  Font.Color = clWindowText  Font.Height = -11  Font.Name = 'Tahoma'  Font.Style = []  OldCreateOrder = False  Position = poDesktopCenter  OnCreate = FormCreate  PixelsPerInch = 96  TextHeight = 13  object Memo1: TMemo    Left = 0    Top = 8    Width = 73    Height = 89    Lines.Strings = (      'Memo1')    TabOrder = 0  end  object Button1: TButton    Left = 79    Top = 32    Width = 75    Height = 25    Caption = 'Button1'    TabOrder = 1    OnClick = Button1Click  endend