``` js /** * 判断是手机还是pc端 */ function browserRedirect() { var sUserAgent = navigator.userAgent.toLowerCase(); var bIsIpad = sUserAgent.match(/ipad/i) == "ipad"; var bIsIphoneOs = sUserAgent.match(/iphone os/i) == "iphone os"; var bIsMidp = sUserAgent.match(/midp/i) == "midp"; var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4"; var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb"; var bIsAndroid = sUserAgent.match(/android/i) == "android"; var bIsCE = sUserAgent.match(/windows ce/i) == "windows ce"; var bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile"; if (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) { //手机端 } else { //pc端 $('*').css("width",'100%'); $('*').css("height",'100%'); } } browserRedirect(); //判断是手机端还是pc端 $(function(){ var h = window.screen.height; var w = window.screen.width; $('#myiframe').attr("width",w); //把宽属性追加进去 $('#myiframe').attr("height",h); //把高属性追加进去 }) ```