<div> <br><iframe>document.frames['news2'].document.body.scrollHeight) document.all.news1.height=document.frames['news1'].document.body.scrollHeight;if(document.frames['news1'].document.body.scrollHeight</iframe> <br> </div> <br><br><div> <br><br><iframe>document.frames['news2'].document.body.scrollHeight) document.all.news2.height=document.frames['news1'].document.body.scrollHeight;if(document.frames['news1'].document.body.scrollHeight</iframe> <br><br> </div> <br>jb51提醒啊,多浏览期兼容需要注意些地方,不要用document.all用兼容好的,