JS代码

<script>
	/*不同分辨率手机加载*/
	var userScalable = "no";
	var ins = "";
	(function () {
		if (window.devicePixelRatio === 1.5) {
			userScalable = "yes";
			ins = "initial-scale=0.5"
		}
		var text = "<meta content='" + ins + ", target-densitydpi=device-dpi, width=640,user-scalable=" + userScalable + "' name='viewport'>";
		document.write(text);
	})();
</script>