JS获取屏幕分辨率,可见区域,可用工作区等大小

<script>
function a(){
document.write(
"屏幕分辨率为:"+screen.width+"*"+screen.height
+"<br />"+
"屏幕可用大小:"+screen.availWidth+"*"+screen.availHeight
+"<br />"+
"网页可见区域宽:"+document.body.clientWidth
+"<br />"+
"网页可见区域高:"+document.body.clientHeight
+"<br />"+
"网页可见区域宽(包括边线的宽):"+document.body.offsetWidth 
+"<br />"+
"网页可见区域高(包括边线的宽):"+document.body.offsetHeight 
+"<br />"+
"网页正文全文宽:"+document.body.scrollWidth
+"<br />"+
"网页正文全文高:"+document.body.scrollHeight
+"<br />"+
"网页被卷去的高:"+document.body.scrollTop
+"<br />"+
"网页被卷去的左:"+document.body.scrollLeft
+"<br />"+
"网页正文部分上:"+window.screenTop
+"<br />"+
"网页正文部分左:"+window.screenLeft
+"<br />"+
"屏幕分辨率的高:"+window.screen.height
+"<br />"+
"屏幕分辨率的宽:"+window.screen.width
+"<br />"+
"屏幕可用工作区高度:"+window.screen.availHeight
+"<br />"+
"屏幕可用工作区宽度:"+window.screen.availWidth
);
}
</script>
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