<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body> <script type="text/javascript"> var wid=document.documentElement.scrollWidth||document.body.scrollWidth; var hei=document.documentElement.scrollHeight||document.body.scrollHeight; document.write("kuan"+wid+" "+"gao"+hei) document.write("<br/>"); var wid=document.documentElement.scrollWidth||document.body.scrollWidth; var hei=document.documentElement.scrollHeight||document.body.scrollHeight; document.write("kuan"+wid+" "+"gao"+hei) </script> </body> </html>
Scroll这个属性是当前内容位于网页浏览窗口的距离。 你写的这两条高度明显不在同一行,当然高度就不一样了
要知道这些区别建议你看博客:http://blog.csdn.net/xiebaochun/article/details/38382169