screen.width;//获取分辨率的宽度
screen.height;//获取分辨率的高度
//页面缩放比例设置方法
document.getElementsByTagName('body')[0].style.zoom=0.67//该方法将页面设置比例调整为67%
<script language="JavaScript"><!-- Begin
function redirectPage() {
var w=screen.width
var h=screen.height
alert("经系统检测,你的屏幕分辨率为 " + w+"*"+ h )
}
// End -->
</script>
获取PPI:function js_getDPI() {
var arrDPI = new Array
if (window.screen.deviceXDPI) {
arrDPI[0] = window.screen.deviceXDPI
arrDPI[1] = window.screen.deviceYDPI
}
else {
var tmpNode = document.createElement("DIV")
tmpNode.style.cssText = "width:1inheight:1inposition:absoluteleft:0pxtop:0pxz-index:99visibility:hidden"
document.body.appendChild(tmpNode)
arrDPI[0] = parseInt(tmpNode.offsetWidth)
arrDPI[1] = parseInt(tmpNode.offsetHeight)
tmpNode.parentNode.removeChild(tmpNode)
}
return arrDPI
}
window.onload=function(){
alert("当前屏幕PPI "+js_getDPI())
}