JS获取body及屏幕的宽度和高度

<script>
var s = "";

s+= " 网页可见区域宽："+ document.body.clientWidth;
s += " 网页可见区域高："+ document.body.clientHeight;

s += " 网页可见区域宽："+ document.body.offsetWidth+" (包括边线和滚动条的宽)";
s += " 网页可见区域高："+ document.body.offsetHeight+" (包括边线的宽)";

s += " 网页正文全文宽："+ document.body.scrollWidth;
s += " 网页正文全文高："+ document.body.scrollHeight;

s += " 网页被卷去的高："+ document.body.scrollTop;
s += " 网页被卷去的左："+ document.body.scrollLeft;

s += " 网页正文部分上："+ window.screenTop;
s += " 网页正文部分左："+ window.screenLeft;

s += " 屏幕分辨率的高："+ window.screen.height;
s += " 屏幕分辨率的宽："+ window.screen.width;

s += " 屏幕可用工作区高度："+ window.screen.availHeight;
s += " 屏幕可用工作区宽度："+ window.screen.availWidth;

s += " 你的屏幕设置是 "+ window.screen.colorDepth +" 位彩色";
s += " 你的屏幕设置 "+ window.screen.deviceXDPI +" 像素/英寸";

console.log(s)
</script>