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type
myclass=class  //¶¨ÒåÒ»¸öÀà
procedure mypro (var x:integer);//´´½¨¹ý³Ì·½·¨
function myfun (var x:integer):integer;//´´½¨º¯Êý·½·¨
end;

function myclass.myfun(var x:integer):integer;//ʵÀý»¯·½·¨
begin
x:=2;
end;
procedure myclass.mypro(var x:integer);
begin
x:=x+2;
end;
procedure TForm1.Button1Click(Sender: TObject);
var
i:integer;
mycls:myclass;
begin
mycls:=myclass.Create;  //´´½¨¶ÔÏó
i:=6;
mycls.myfun(i);    //µ÷Ó÷½·¨
showmessage(inttostr(i));
mycls.Free;
end;

end.
--------------------
i:=6;
mycls.myfun(i);    //µ÷Ó÷½·¨
showmessage(inttostr(i));
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