把 procedure TForm1.FormKeyDown(Sender: TObject; var Key: Word;
Shift: TShiftState);
begin
if (key = 38) or (Key = 33) then
Edit1.Text:=inttostr(Random(100));
if (key = 40) or (Key = 34) then
Edit1.Text:=inttostr(Random(100));
Edit1.SelectAll;//失效
end;改为procedure TForm1.FormKeyUp(Sender: TObject; var Key: Word;
Shift: TShiftState);
begin
if (key = 38) or (Key = 33) then
Edit1.Text:=inttostr(Random(100));
if (key = 40) or (Key = 34) then
Edit1.Text:=inttostr(Random(100));
Edit1.SelectAll;//失效
end;
Shift: TShiftState);
begin
if (key = 38) or (Key = 33) then
Edit1.Text:=inttostr(Random(100));
if (key = 40) or (Key = 34) then
Edit1.Text:=inttostr(Random(100));
Edit1.SelectAll;//失效
end;改为procedure TForm1.FormKeyUp(Sender: TObject; var Key: Word;
Shift: TShiftState);
begin
if (key = 38) or (Key = 33) then
Edit1.Text:=inttostr(Random(100));
if (key = 40) or (Key = 34) then
Edit1.Text:=inttostr(Random(100));
Edit1.SelectAll;//失效
end;
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