[No000068]document.body.clientHeight 和 document.documentElement.clientHeight 的区别

 document.body.clientWidth ==> BODY对象宽度

document.body.clientHeight ==> BODY对象高度

document.documentElement.clientWidth ==> 可见区域宽度

document.documentElement.clientHeight ==> 可见区域高度

注意开头<!DOCTYPE ..>的声明，没有该声明时，document.documentElement.clientHeight 始终在Chrome中为1016 px

测试代码：

<!DOCTYPE html >
 <head>
  <title> New Document </title>
  <script language="JavaScript">
  function a(){
        document.getElementById("bodyheight").innerText = document.body.clientHeight;
        document.getElementById("documentheight").innerText = document.documentElement.clientHeight;
    }
  </script>
 </head>

 <body style= "height: 1000px;">
    <p>
        <a href="javascript:a()">click here</a>
        <br/>
            document.body.clientHeight = <span id="bodyheight"></span> px
        <br/>
            document.documentElement.clientHeight = <span id="documentheight"></span> px
    </p>
 </body>
</html>

 

posted @ 2015-12-16 21:15  CharyGao  阅读(264)  评论(0)  编辑  收藏  举报