核心提示：scriptvar pixelRatio = 1/window.devicePixelRatio;document.write(meta name = viewport content = width...
<script>
var pixelRatio = 1/window.devicePixelRatio;
document.write('<meta name = "viewport" content = "width = device-width,initial-scale='+pixelRatio+',minimum-scale ='+pixelRatio+', maximum-scale = '+pixelRatio+'">');
</script>
