要寫一個程式有11ㄍ案紐
上面是12345
下面是 -*/C
最後ㄉ暗紐是=
我在等於的地方寫不出來~執行後永遠都是只執行除ㄉ部份~
請大家幫我看看我那錯ㄌ~謝謝
var
Frm3134_2: TFrm3134_2;
who: String;
implementation
{$R *.dfm}

procedure TFrm3134_2.btn3134_21Click(Sender: TObject);
begin
if ( who = '1' ) then
self.lbl3134_21.Text := self.lbl3134_21.Text '1'
else
self.lbl3134_22.Text := self.lbl3134_22.Text '1';
end;
procedure TFrm3134_2.btn3134_22Click(Sender: TObject);
begin
if ( who = '1' ) then
self.lbl3134_21.Text := self.lbl3134_21.Text '2'
else
self.lbl3134_22.Text := self.lbl3134_22.Text '2';
end;

procedure TFrm3134_2.FormCreate(Sender: TObject);
begin
who := '1';
end;
procedure TFrm3134_2.btn3134_23Click(Sender: TObject);
begin
if ( who = '1' ) then
self.lbl3134_21.Text := self.lbl3134_21.Text '3'
else
self.lbl3134_22.Text := self.lbl3134_22.Text '3';
end;
procedure TFrm3134_2.btn3134_24Click(Sender: TObject);
begin
if ( who = '1' ) then
self.lbl3134_21.Text := self.lbl3134_21.Text '4'
else
self.lbl3134_22.Text := self.lbl3134_22.Text '4';
end;
procedure TFrm3134_2.btn3134_25Click(Sender: TObject);
begin
if ( who = '1' ) then
self.lbl3134_21.Text := self.lbl3134_21.Text '5'
else
self.lbl3134_22.Text := self.lbl3134_22.Text '5';
end;
procedure TFrm3134_2.btn3134_26Click(Sender: TObject);
begin
who := '2';
self.txt3134_25.Caption := ' ';
end;
procedure TFrm3134_2.btn3134_27Click(Sender: TObject);
begin
who := '2';
self.txt3134_25.Caption := '-';
end;
procedure TFrm3134_2.btn3134_28Click(Sender: TObject);
begin
who := '2';
self.txt3134_25.Caption := '*';
end;
procedure TFrm3134_2.btn3134_29Click(Sender: TObject);
begin
who := '2';
self.txt3134_25.Caption := '/';
end;
procedure TFrm3134_2.btn3134_210Click(Sender: TObject);
begin
if ( who = '1' ) then
self.lbl3134_21.Text := self.lbl3134_21.Text '0'
else
self.lbl3134_22.Text := self.lbl3134_22.Text '0';
end;
procedure TFrm3134_2.btn3134_211Click(Sender: TObject);
begin
if ( who = '6') then
self.txt3134_25.Caption := ' ';
self.lbl3134_23.Text :=
FloatToStr(StrToFloat(self.lbl3134_21.Text) StrToFloat(self.lbl3134_22.Text));
begin
if (who = '3') then
self.txt3134_25.Caption := '-';
self.lbl3134_23.Text :=
FloatToStr(StrToFloat(self.lbl3134_21.Text)-StrToFloat(self.lbl3134_22.Text));
begin
if (who = '4') then
self.txt3134_25.Caption := '*';
self.lbl3134_23.Text :=
FloatToStr(StrToFloat(self.lbl3134_21.Text)*StrToFloat(self.lbl3134_22.Text));
begin
if (who = '5') then
self.txt3134_25.Caption := '/';
self.lbl3134_23.Text :=
FloatToStr(StrToFloat(self.lbl3134_21.Text)/StrToFloat(self.lbl3134_22.Text));
end;
end;
end;
end;
end.

------
人仟

我看不太懂你寫的 我寫一個簡易的1-4,+-*/=按鈕
解開你的移惑是我得成就
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
Button2: TButton;
Button3: TButton;
Button4: TButton;
Button5: TButton;
Button6: TButton;
Button7: TButton;
Button8: TButton;
Button9: TButton;
Edit1: TEdit;
procedure Button9Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
a,b:double;
dd:string;
implementation
{$R *.dfm}
procedure TForm1.Button9Click(Sender: TObject);
begin
case (Sender as Tbutton).Tag of
1..4:begin
Edit1.Text:= Edit1.Text inttostr((Sender as Tbutton).Tag);
end;
5..8:begin
a:=strtofloat(Edit1.Text);
Edit1.Text:=Edit1.Text (Sender as Tbutton).Caption;
dd:=(Sender as Tbutton).Caption;
end;
9:begin
b:=strtofloat(copy(Edit1.Text,pos(dd,Edit1.Text) 1,length(Edit1.Text)- pos(dd,Edit1.Text)));
case ord(dd[1]) of
43:Edit1.Text:=floattostr(a b);
45:Edit1.Text:=floattostr(a -b);
42:Edit1.Text:=floattostr(a *b);
47:Edit1.Text:=floattostr(a /b);
end;
a:=0;
b:=0;
dd:=' ';
end;
end;
end;