procedure TForm1.Button1Click(Sender: TObject); VAR I:INTEGER; //t:Tstringlist; begin //t:=Tstringlist.Create;// () for i:= 0 to richedit1.Lines.Count-1 do begin richedit1.Lines.Strings[i]:=inttostr(i)+' '+richedit1.Lines.Strings[i]; end;end; //老大,不能说我写的太.... 给分吧
VAR
I:INTEGER;
//t:Tstringlist;
begin
//t:=Tstringlist.Create;// ()
for i:= 0 to richedit1.Lines.Count-1 do
begin
richedit1.Lines.Strings[i]:=inttostr(i)+' '+richedit1.Lines.Strings[i];
end;end;
//老大,不能说我写的太....
给分吧
应该给分了吧
unit Unit8;interfaceuses
{}Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
{}Dialogs, StdCtrls, ActnList, ExtCtrls;type
{}TForm1 = class(TForm)
{}{}Memo2: TMemo;
{}{}Panel1: TPanel;
{}{}Memo1: TMemo;
{}{}Button1: TButton;
{}{}procedure FormCreate(Sender: TObject);
{}{}procedure ActionUpdate(Sender: TObject);
{}private
{}{}{ Private declarations }
{}{}FTextHeight: Integer;
{}{}FLineCount: Integer;
{}{}FLineStart: Integer;
{}public
{}{}{ Public declarations }
{}end;var
{}Form1: TForm1;implementation{$R *.dfm}procedure TForm1.FormCreate(Sender: TObject);
begin
{}with TControlCanvas.Create do try
{}{}Control := Memo1;
{}{}FTextHeight := Canvas.TextHeight('|');
{}{}FLineCount := Memo1.ClientHeight div FTextHeight;
{}finally
{}{}Free;
{}end;
{}FLineStart := -1;
{}Memo2.Parent := Memo1.Parent;
{}Memo2.Font.Assign(Memo1.Font);
{}Memo2.BorderStyle := bsNone;
{}Memo2.Ctl3D := False;
{}Memo2.Width := Canvas.TextWidth('9999');
{}Memo2.Left := Memo1.Left - Memo2.Width - 3;
{}Memo2.Enabled := False;
{}Memo2.ParentColor := True;
{}Memo2.Height := Memo1.ClientHeight;
{}Memo2.Top := Memo1.Top + 3;
{}with TButton.Create(Self) do begin
{}{}Parent := Self;
{}{}Top := -100;
{}{}TabStop := False;
{}{}Action := TAction.Create(Self);
{}{}Action.OnUpdate := ActionUpdate;
{}end;
end;procedure TForm1.ActionUpdate(Sender: TObject);
var
{}I, J: Integer;
{}S: string;
begin
{}J := SendMessage(Memo1.Handle, EM_CHARFROMPOS, 0, MAKELPARAM(0, 2)) shr 16;
{}if FLineStart = J then Exit;
{}FLineStart := J;
{}S := '';
{}for I := J to J + FLineCount - 1 do
{}{}S := S + Format('%.4d', [I]);
{}Memo2.Text := S;
end;end.
我提供给你的只是一个思路
你发挥发挥即可解决