移动设备页面自适应
;(function(){ var w = parseInt(window.screen.width), s = w/640, u = navigator.userAgent.toLowerCase(), m = '<meta name="viewport" content="width=640,'; if (/android (\d+\.\d+)/.test(u)){ if(parseFloat(RegExp.$1)>2.3) m += 'minimum-scale='+s+',maximum-scale='+s+','; }else{ m += 'user-scalable=no,'; } m += 'target-densitydpi=device-dpi">'; document.write(m); }());