js实现网页自适应浏览器大小

function setScale(){
	var heigth_screen = window.innerHeight/640; //根据设计的大小设置除数
	var width_screen = window.innerWidth/360;   //同上
	document.body.style.transform = "scale("+width_screen+","+heigth_screen+")";
}
window.onload = function(){
	setScale();
}