Урок на Делфи 56. try except
unit Unit1;
interface
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
Edit1: TEdit;
Button2: TButton;
Memo1: TMemo;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
var
s1:Integer;
begin
Memo1.Clear;
Memo1.Lines.Add(' ');
s1:=StrToInt(Edit1.Text);
Memo1.Lines.Add(' ');
end;
procedure TForm1.Button2Click(Sender: TObject);
var
s1:Integer;
begin
Memo1.Clear;
Memo1.Lines.Add(' ');
try
s1:=StrToInt(Edit1.Text);
Memo1.Lines.Add(' ');
except
Memo1.Lines.Add(' ');
end;
Memo1.Lines.Add(' ');
end;
end.