offsetWidth 包含了对象的边线的宽度 width 若你不在HTML里明确指定这个值,那它的返回值会不对。//在javascript中得到当前窗口的高和宽 <body><SCRIPT LANGUAGE="JavaScript"> var s = ""; s += "\r\n网页可见区域宽:"+ document.body.clientWidth; s += "\r\n网页可见区域高:"+ document.body.clientHeight; s += "\r\n网页可见区域宽:"+ document.body.offsetWidth +" (包括边线和滚动条的宽)"; s += "\r\n网页可见区域高:"+ document.body.offsetHeight +" (包括边线的宽)"; s += "\r\n网页正文全文宽:"+ document.body.scrollWidth; s += "\r\n网页正文全文高:"+ document.body.scrollHeight; s += "\r\n网页被卷去的高:"+ document.body.scrollTop; s += "\r\n网页被卷去的左:"+ document.body.scrollLeft; s += "\r\n网页正文部分上:"+ window.screenTop; s += "\r\n网页正文部分左:"+ window.screenLeft; s += "\r\n屏幕分辨率的高:"+ window.screen.height; s += "\r\n屏幕分辨率的宽:"+ window.screen.width; s += "\r\n屏幕可用工作区高度:"+ window.screen.availHeight; s += "\r\n屏幕可用工作区宽度:"+ window.screen.availWidth; s += "\r\n你的屏幕设置是 "+ window.screen.colorDepth +" 位彩色"; s += "\r\n你的屏幕设置 "+ window.screen.deviceXDPI +" 像素/英寸"; alert(s); </SCRIPT>
width 若你不在HTML里明确指定这个值,那它的返回值会不对。//在javascript中得到当前窗口的高和宽
<body><SCRIPT LANGUAGE="JavaScript">
var s = "";
s += "\r\n网页可见区域宽:"+ document.body.clientWidth;
s += "\r\n网页可见区域高:"+ document.body.clientHeight;
s += "\r\n网页可见区域宽:"+ document.body.offsetWidth +" (包括边线和滚动条的宽)";
s += "\r\n网页可见区域高:"+ document.body.offsetHeight +" (包括边线的宽)";
s += "\r\n网页正文全文宽:"+ document.body.scrollWidth;
s += "\r\n网页正文全文高:"+ document.body.scrollHeight;
s += "\r\n网页被卷去的高:"+ document.body.scrollTop;
s += "\r\n网页被卷去的左:"+ document.body.scrollLeft;
s += "\r\n网页正文部分上:"+ window.screenTop;
s += "\r\n网页正文部分左:"+ window.screenLeft;
s += "\r\n屏幕分辨率的高:"+ window.screen.height;
s += "\r\n屏幕分辨率的宽:"+ window.screen.width;
s += "\r\n屏幕可用工作区高度:"+ window.screen.availHeight;
s += "\r\n屏幕可用工作区宽度:"+ window.screen.availWidth;
s += "\r\n你的屏幕设置是 "+ window.screen.colorDepth +" 位彩色";
s += "\r\n你的屏幕设置 "+ window.screen.deviceXDPI +" 像素/英寸";
alert(s);
</SCRIPT>
<HEAD><TITLE>THIS IS A TEST</TITLE>
<SCRIPT LANGUAGE="JavaScript">
function Clock_Tick(){
var doc_width = document.body.offsetWidth;
alert(doc_width);
var div_width = document.getElementById('MyDiv').offsetWidth;
alert(div_width);
alert(document.body.width);//body的width未定义
alert(document.getElementById('MyDiv').width);//div的width定义
}
</SCRIPT>
<BODY onload="Clock_Tick()">
<DIV ID="MyDiv" width='150px'> </DIV>
</BODY>
</HTML>