还是不行啊，大家运行过下面代码，错误还是
Undeclared identified "IHTMLDocument"
procedure TForm1.Button3Click(Sender: TObject);
var
doc:IHTMLDocument2;
all:IHTMLElementCollection;
len,i:integer;
item:OleVariant;
begin
doc:=WebBrowser1 .Document as IHTMLDocument2;
all:=doc.Get_links; //doc.Links亦可
len:=all.length;
for i:=0 to len-1 do begin
item:=all.item(i,varempty); //EmpryParam亦可
memo1.lines.add(item.href);
end;
end;
end;
][
