var sn1,sn2: Integer; sum :string; begin sn1:= 1; sn2:= 2; sum := IntToStr(sn1 + sn2); edit3.text := sum;
我把他改成 var sn1,sn2:integer; sum :string; begin sn1:=edit1.Text; sn2:=edit2.text; sum:=inttostr(sn1+sn2); edit3.text:=sum; end;end. 这样也出错了? edit1.text 不可以用? 那该怎么写呢?
sn1,sn2: Integer;
sum :string;
begin
sn1:= 1;
sn2:= 2;
sum := IntToStr(sn1 + sn2);
edit3.text := sum;
var
sn1,sn2:integer;
sum :string;
begin
sn1:=edit1.Text;
sn2:=edit2.text;
sum:=inttostr(sn1+sn2);
edit3.text:=sum;
end;end.
这样也出错了?
edit1.text 不可以用?
那该怎么写呢?