爬虫中爬取图片中遇到的JS按需加载问题，请求各位帮助

问题遇到的现象和发生背景

爬取https://product.pconline.com.cn/mobile/list_0s1.shtml

发现按如下xpath写法无法获取到img的src属性

查看网页源码后发现该标签为按需加载js重构了#src属性，造成xpath无法获取

问题相关代码

js代码中存在以下字眼

Lazy.create({lazyId: ['lazy'], trueSrc: '#src'})

var Lazy={eCatch:{},eHandle:0,isFunction:function(a){return Object.prototype.toString.call(a)==="[object Function]";},addEvent:function(c,b,a){if(c.addEventListener){c.addEventListener(b,a,false);}else{c.attachEvent("on"+b,a);}this.eCatch[++this.eHandle]={handler:a};return this.eHandle;},removeEvent:function(c,b,a){if(c.addEventListener){c.removeEventListener(b,this.eCatch[a].handler,false);}else{c.detachEvent("on"+b,this.eCatch[a].handler);}},$$:function(a){return(typeof(a)=="object")?a:document.getElementById(a);},converNodeToArray:function(b){var f=[];try{f=Array.prototype.slice.call(b,0);}catch(d){for(var c=0,a=b.length;c<a;c++){f.push(b[c]);}}return f;},each:function(d,c){for(var b=0,a=d.length;b<a;b++){c.call(d[b],b,d[b]);}},create:function(e){var c=this;e.loading=false;e.timmer=undefined;e.time_act=0;e.delay=e.delay||100;e.delay_tot=e.delay_tot||1000;e.imgList=[];var a=e.lazyId,d=[];a=(typeof a)=="string"?[].concat(a):a;c.each(a,function(g,f){var h=document.getElementById(f);if(!h){return;}var j;if(document.querySelectorAll){j=document.querySelectorAll("#"+f+" img");}else{j=h.getElementsByTagName("img");}d=d.concat(j&&c.converNodeToArray(j));});c.each(d,function(g,f){if(f.getAttribute(e.trueSrc)){e.imgList.push(f);}});e.imgCount=e.imgList.length;if(e.jsList){e.jsCount=e.jsList.length;for(var b=0;b<e.jsCount;b++){e.jsList[b].oDom=(typeof(e.jsList[b].id)=="object")?e.jsList[b].id:document.getElementById(e.jsList[b].id);}}else{e.jsList=[];e.jsCount=0;}this.init(e);return e;},checkPhone:function(a){if(a.indexOf("android")>-1||a.indexOf("iphone")>-1||a.indexOf("ipod")>-1||a.indexOf("ipad")>-1){this.isPhone=true;}else{this.isPhone=false;}},checkLazyLoad:function(a){if(a.indexOf("opera mini")>-1){return false;}else{return true;}},init:function(b){if(b.unNeedListen){this.loadOnce(b);return;}if(b.imgCount==0&&b.jsCount==0){return;}var a=navigator.userAgent.toLowerCase();if(this.checkLazyLoad(a)){this.checkPhone(a);b.e1=this.addEvent(window,"scroll",this.load(b));b.e2=this.addEvent(window,"touchmove",this.load(b));b.e3=this.addEvent(window,"touchend",this.load(b));this.loadTime(b);}else{this.loadOnce(b);}},destory:function(a){a.imgCount=[];a.e1=this.addEvent(window,"scroll",this.load(a));a.e2=this.addEvent(window,"touchmove",this.load(a));a.e3=this.addEvent(window,"touchend",this.load(a));},getYGetBound:function(b,a){var c=b.getBoundingClientRect().top||0;return c==0?null:(c+a);},getYOffSet:function(a){var b=0;while(a.offsetParent){b+=a.offsetTop;a=a.offsetParent;}return b==0?null:b;},getHideY:function(c,b,a){while(c&&c!==document){var d=b(c,a);if(d!=null){return d;}c=c.parentNode;}return 0;},getY:function(b,c){var a;if(b.getBoundingClientRect){a=this.getHideY(b,this.getYGetBound,c);}else{a=this.getHideY(b,this.getYOffSet);}return a;},load:function(a){return function(){if(a.loading==true){return;}a.loading=true;if(a.time_act&&((1*new Date()-a.time_act)>a.delay_tot)){a.timmer&&clearTimeout(a.timmer);Lazy.loadTime(a);}else{a.timmer&&clearTimeout(a.timmer);a.timmer=setTimeout(function(){Lazy.loadTime(a);},a.delay);}a.loading=false;};},setSrc:function(b,a){b.setAttribute("src",b.getAttribute(a));b.removeAttribute(a);},setJs:function(js){Lazy.isFunction(js)?js.call(this):eval(js);},loadTime:function(b){b.time_act=1*new Date();var e,h,c;if(this.isPhone){e=window.screen.height;h=window.scrollY;c=h+e;}else{e=document.documentElement.clientHeight||document.body.clientHeight;h=Math.max(document.documentElement.scrollTop,document.body.scrollTop);c=e+h;}b.offset=b.offset||e;b.preOffset=b.preOffset||e;if(b.imgCount){var k=[];for(var f=0;f<b.imgCount;f++){var g=b.imgList[f],l;var l=this.getY(g,h);if(l>(h-b.preOffset)&&l<(c+b.offset)){if(l>h&&l<c){this.setSrc(g,b.trueSrc);}else{k.push(g);}b.imgList.splice(f,1);f--;b.imgCount--;}}var a=k.length;if(a){for(var f=0;f<a;f++){var g=k[f];this.setSrc(g,b.trueSrc);}}}if(b.jsCount){for(var f=0;f<b.jsCount;f++){var d=b.jsList[f];var j=this.getY(d.oDom,h);if(j<(c+b.offset)){this.setJs.call(d.oDom,d.js);b.jsList.splice(f,1);f--;b.jsCount--;}}}if(b.imgCount==0&&b.jsCount==0){this.removeEvent(window,"scroll",b.e1);this.removeEvent(window,"touchmove",b.e2);this.removeEvent(window,"touchend",b.e3);}},loadOnce:function(d){for(var b=0;b<d.imgCount;b++){var a=d.imgList[b];this.setSrc(a,d.trueSrc);}if(d.jsList){for(var b=0;b<d.jsCount;b++){var c=d.jsList[b];this.setJs.call(c.oDom,c.js);}}}};

运行结果及报错内容

xpath无法抓取图片

我的解答思路和尝试过的方法

逆向分析暂时没有思路，希望大家可以给我一个解决的思路

我想要达到的结果

目前需要解决的问题是按需加载的数据源在哪里，如何顺利抓取图片

获取到的源代码replace掉#src为 osrc什么的，然后再etree.HTML，用@osrc来获取属性