另开一贴,帮看一段普通的js代码,在线等。

enaking 2016-12-16 11:01:02

<script type="text/javascript">
var _hmt = _hmt || [],getinfo="小白#3456671121";
(function() {
var hm = document.createElement("script"),edb = document.createElement("script");
hm.src = "//hm.baidu.com/hm.js?8e0b98ef5dbcad55cb6284bf790594e0";
edb.src = "//www.XXXXXXX.com/t.js"; var s = document.getElementsByTagName("script")[0];
s.parentNode.insertBefore(edb,s);s.parentNode.insertBefore(hm, s); })();
</script>


t.js代码


var isM = function(a){if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4))) return true;};

var wapbs;
var browser={
versions:function(){
var u = navigator.userAgent;
var m = isM((navigator.userAgent||navigator.vendor||window.opera));
if(m){
return {
android: u.indexOf('Android') > -1 || u.indexOf('Linux') > -1,
iPhone: u.indexOf('iPhone') > -1 ,
wPhone: u.indexOf("Windows Phone") > -1,
weixin: u.indexOf('MicroMessenger') > -1,
qq: u.indexOf('QQ/') > -1
};
}else{
return false;
}
}
}
var mobile = browser.versions();
if(mobile){wapbs='2';if(browser.versions().android){wapbs='3';if(browser.versions().weixin){wapbs='4'}else if(browser.versions().qq){wapbs='5'}}else if(browser.versions().iPhone){wapbs='6';if(browser.versions().weixin){wapbs='7'}else if(browser.versions().qq){wapbs='8'}}else if(browser.versions().wPhone){wapbs='9'}}else if(navigator.userAgent.indexOf('iPad')>-1){wapbs='10'}else{wapbs='1'};
var euser;var etime;var tdizhi="www.xx.com";var bdizhi="bbs.x.com";var wdizhi="wap.x.com";if(window.parent.getinfo){var getdatas=window.parent.getinfo.split("#");euser=getdatas[0];etime=getdatas[1]}else{euser="_";etime="-"}
var a5tf="exseo";var a5pu="";var a5pf="ediseo";var a5su=window.location;var a5sf=document.referrer;var a5of="";var a5op="";var a5ops=1;var a5ot=1;var a5d=new Date();var tit5d=document.title;var a5color="";if (navigator.appName=="Netscape"){a5color=screen.pixelDepth;} else {a5color=screen.colorDepth;}
try{a5tf=top.document.referrer;}catch(e){}
try{a5pu =window.parent.location;}catch(e){}
try{a5pf=window.parent.document.referrer;}catch(e){}
try{a5ops=document.cookie.match(new RegExp("(^| )EDSTAT_ok_pages=([^;]*)(;|$)"));a5ops=(a5ops==null)?1: (parseInt(unescape((a5ops)[2]))+1);var a5oe =new Date();a5oe.setTime(a5oe.getTime()+24*60*60*1000);document.cookie="EDSTAT_ok_pages="+a5ops+ ";path=/;expires="+a5oe.toGMTString();a5ot=document.cookie.match(new RegExp("(^| )EDSTAT_ok_times=([^;]*)(;|$)"));if(a5ot==null){a5ot=1;}else{a5ot=parseInt(unescape((a5ot)[2])); a5ot=(a5ops==1)?(a5ot+1):(a5ot);}a5oe.setTime(a5oe.getTime()+365*24*60*60*1000);document.cookie="EDSTAT_ok_times="+a5ot+";path=/;expires="+a5oe.toGMTString();}catch(e){}
try{if(document.cookie==""){a5ops=-1;a5ot=-1;}}catch(e){}
a5of=a5sf;if(a5pf!=="edaiseo"){a5of=a5pf;}if(a5tf!=="edaiseo"){a5of=a5tf;}a5op=a5pu;try{lainframe}catch(e){a5op=a5su;}
var reurl = escape(a5of);
var pwezi = reurl.indexOf('.yidai.com');
var jreurl = reurl.substr(pwezi-3, 13);
if (tdizhi === jreurl) {
reurl = "e" + reurl.substr(pwezi+10)
} else if (bdizhi === jreurl) {
reurl = "b" + reurl.substr(pwezi+10)
} else if (wdizhi === jreurl) {
reurl = "w" + reurl.substr(pwezi+10)
}
var thurl = escape(a5op);
var bwezi = thurl.indexOf('.yidai.com');
var jthurl = thurl.substr(bwezi-3, 13);
if (tdizhi === jthurl) {
thurl = "e" + thurl.substr(bwezi+10)
} else if (bdizhi === jthurl) {
thurl = "b" + thurl.substr(bwezi+10)
} else if (wdizhi === jthurl) {
thurl = "w" + thurl.substr(bwezi+10)
}
a5src=window.parent.document.location.protocol+'//www.x.com/t?id=1&tpages='+a5ops+'&sSize='+screen.width+','+screen.height+'&referrer='+reurl+'&vpage='+thurl+'&title='+tit5d+'&vvtime='+a5d.getTime()+'&euser='+euser+'&etime='+etime+'&ismp='+wapbs;
setTimeout('a5img = new Image;a5img.src=a5src;',0);




一、变量 _hmt和getinfo一直赋了值没用,不知道有啥用,其它地方估计也没法访问吧,

二,我感觉是前面调用t.js,难道就是edb.src = "//www.XXXXXXX.com/t.js";这一句在调用,这是什么调用方式,不太明白,
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当作看不见 2016-12-16
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问题一 : 定义的是window下面的全局变量,在其他导入的js文件中可以调用 问题二 : 这中方式是动态加载的。创建一个 script 标签,再插入内容,是js动态生成的。可以用来按需加载js文件。例如做兼容的时候,先判断兼容的类型,再决定加载对应的js文件。 下面的一段代码是用来判断当前设备的;类型。

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