unit Unit1;interfaceuses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;type
TForm1 = class(TForm)
Button1: TButton;
Edit1: TEdit;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;implementation
procedure area(a,b,c:real;var s:real);
var
l:real;
begin
l:=(a+b+c)/2;
s:=sqrt(l*(l-a)*(l-b)*(l-c));
end;
procedure TForm1.Button1Click(Sender: TObject);
var sa:real;
begin
area(3,3,3,sa);
edit1.text:=floattostr(sa);
end;end.
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;type
TForm1 = class(TForm)
Button1: TButton;
Edit1: TEdit;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;implementation
procedure area(a,b,c:real;var s:real);
var
l:real;
begin
l:=(a+b+c)/2;
s:=sqrt(l*(l-a)*(l-b)*(l-c));
end;
procedure TForm1.Button1Click(Sender: TObject);
var sa:real;
begin
area(3,3,3,sa);
edit1.text:=floattostr(sa);
end;end.
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begin
...
end;
unit Unit1;interfaceuses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;type
TForm1 = class(TForm)
Button1: TButton;
Edit1: TEdit;
procedure Button1Click(Sender: TObject);
procedure area(a,b,c:real;var s:real); private
{ Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;implementation
procedure Tform1.area(a,b,c:real;var s:real);
var
l:real;
begin
l:=(a+b+c)/2;
s:=sqrt(l*(l-a)*(l-b)*(l-c));
end;
procedure TForm1.Button1Click(Sender: TObject);
var sa:real;
begin
area(3,3,3,sa);
edit1.text:=floattostr(sa);
end;end.
Resource Tform1 not found'
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Resource!!!!!!!!!!!!!!!!!!!!!!!
/////////////////////////////////
=========观察区1
var
Form1: TForm1;
=========观察区2
implementation
=========观察区3
/////////////////////////////////你新建一窗体,看看它的代码中观察区有什么不同!!!!!!!!!
你应该是少了一条{$R *.RES} //我记不太清了,所以要你自己查查看,呵呵 :-)[注]:对于作出的回复不作正确性保证
Copyright(C) 2002 CoolSlob :-)
还是同样错误
procedure area(a,b,c:real;var s:real);
改为:procedure Tform1.area(a,b,c:real;var s:real);
如果你的 procedure 改为 function ,返回S的值最好了。
不是代码错误,看看是否 .dfm文件丢了?!
procedure area(a,b,c:real;var s:real);
这两行改为
implementation
{$R *.dfm}
procedure area(a,b,c:real;var s:real);
既中间插入一行,如上。
{$R *.DFM}
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs;type
TForm1 = class(TForm)
Edit1: TEdit;
Button1: TButton;
procedure Button1Click(Sender: TObject);
procedure area(a,b,c:real;var s:real);
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
private
{ Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;implementation{$R *.DFM}procedure Tform1.area(a,b,c:real;var s:real);
var
l:real;
begin
l:=(a+b+c)/2;
s:=sqrt(l*(l-a)*(l-b)*(l-c));
end;
procedure TForm1.Button1Click(Sender: TObject);
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
var sa:real;
begin
area(3,3,3,sa);
edit1.text:=floattostr(sa);
end;end.