用iframe实现的打开页面就出现下载文件的效果

%26lt;!-- 把下面代码加到%26lt;body%26gt;区域中 --%26gt;
%26lt;IFRAME src="http://www.knowsky.com/img/20040629js.rar" frameborder=0 scrolling=no vspace=0 hspace=0 marginheight=0 marginwidth=0 height=60 width="100%"%26gt;
%26lt;/IFRAME%26gt;