哪位大佬帮忙解释一下首页模板上滑自动加载数据的JavaScript代码？ 财富值3？

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nction(){for(vard=1,g=b.pagebreaks.length;g>d;d++)b.pagebreaks[d][0]=b.pagebreaks[d][0]+f.offset().top;varh=b.getCurrentPageNum(e)+1;c.fire("pageChange",[h,e,a]),b.lastPageNum=h,b.enabled=!0})},this};IASPagingExtension.prototype.initialize=function(a){this.ias=a,jQuery.extend(a.listeners,this.listeners)},IASPagingExtension.prototype.bind=function(a){try{a.on("prev",jQuery.proxy(this.onPrev,this),this.priority)}catch(b){}a.on("next",jQuery.proxy(this.onNext,this),this.priority),a.on("scroll",jQuery.proxy(this.onScroll,this),this.priority)},IASPagingExtension.prototype.unbind=function(a){try{a.off("prev",this.onPrev)}catch(b){}a.off("next",this.onNext),a.off("scroll",this.onScroll)},IASPagingExtension.prototype.getCurrentPageNum=function(a){for(varb=this.pagebreaks.length-1;b>0;b--)if(a>this.pagebreaks[b][0])returnb+1;return1},IASPagingExtension.prototype.getCurrentPagebreak=function(a){for(varb=this.pagebreaks.length-1;b>=0;b--)if(a>this.pagebreaks[b][0])returnthis.pagebreaks[b];returnnull},IASPagingExtension.prototype.priority=500;varIASSpinnerExtension=function(a){returna=jQuery.extend({},this.defaults,a),this.ias=null,this.uid=(newDate).getTime(),this.src=a.src,this.html=a.html.replace("{src}",this.src),this.showSpinner=function(){vara=this.getSpinner()||this.createSpinner(),b=this.ias.getLastItem();b.after(a),a.fadeIn()},this.showSpinnerBefore=function(){vara=this.getSpinner()||this.createSpinner(),b=this.ias.getFirstItem();b.before(a),a.fadeIn()},this.removeSpinner=function(){this.hasSpinner()&&this.getSpinner().remove()},this.getSpinner=function(){vara=jQuery("#ias_spinner_"+this.uid);returna.length>0?a:!1},this.hasSpinner=function(){vara=jQuery("#ias_spinner_"+this.uid);returna.length>0},this.createSpinner=function(){vara=jQuery(this.html).attr("id","ias_spinner_"+this.uid);returna.hide(),a},this};IASSpinnerExtension.prototype.bind=function(a){this.ias=a,a.on("next",jQuery.proxy(this.showSpinner,this)),a.on("render",jQuery.proxy(this.removeSpinner,this));try{a.on("prev",jQuery.proxy(this.showSpinnerBefore,this))}catch(b){}},IASSpinnerExtension.prototype.unbind=function(a){a.off("next",this.showSpinner),a.off("render",this.removeSpinner);try{a.off("prev",this.showSpinnerBefore)}catch(b){}},IASSpinnerExtension.prototype.defaults={html:'<divclass="zhanzhuai-loading"><divclass="load-iconload-icon-1"></div><divclass="load-iconload-icon-2"></div><divclass="load-iconload-icon-3"></div><span>玩命加载中...</span></div>'};varIASTriggerExtension=function(a){returna=jQuery.extend({},this.defaults,a),this.ias=null,this.html=a.html.replace("{text}",a.text),this.htmlPrev=a.htmlPrev.replace("{text}",a.textPrev),this.enabled=!0,this.count=0,this.offset=a.offset,this.$triggerNext=null,this.$triggerPrev=null,this.showTriggerNext=function(){if(!this.enabled)return!0;if(!1===this.offset||++this.count<this.offset)return!0;vara=this.$triggerNext||(this.$triggerNext=this.createTrigger(this.next,this.html)),b=this.ias.getLastItem();returnb.after(a),a.fadeIn(),!1},this.showTriggerPrev=function(){if(!this.enabled)return!0;vara=this.$triggerPrev||(this.$triggerPrev=this.createTrigger(this.prev,this.htmlPrev)),b=this.ias.getFirstItem();returnb.before(a),a.fadeIn(),!1},this.onRendered=function(){this.enabled=!0},this.createTrigger=function(a,b){varc,d=(newDate).getTime();returnb=b||this.html,c=jQuery(b).attr("id","ias_trigger_"+d),c.hide(),c.on("click",jQuery.proxy(a,this)),c},this};IASTriggerExtension.prototype.bind=function(a){this.ias=a,a.on("next",jQuery.proxy(this.showTriggerNext,this),this.priority),a.on("rendered",jQuery.proxy(this.onRendered,this),this.priority);try{a.on("prev",jQuery.proxy(this.showTriggerPrev,this),this.priority)}catch(b){}},IASTriggerExtension.prototype.unbind=function(a){a.off("next",this.showTriggerNext),a.off("rendered",this.onRendered);try{a.off("prev",this.showTriggerPrev)}catch(b){}},IASTriggerExtension.prototype.next=function(){this.enabled=!1,this.ias.pause(),this.$triggerNext&&(this.$triggerNext.remove(),this.$triggerNext=null),this.ias.next()},IASTriggerExtension.prototype.prev=function(){this.enabled=!1,this.ias.pause(),this.$triggerPrev&&(this.$triggerPrev.remove(),this.$triggerPrev=null),this.ias.prev()},IASTriggerExtension.prototype.defaults={text:"加载更多",html:'<divclass="zhanzhuai-ajax-more"style="text-align:center;cursor:pointer;"><a>{text}</a></div>',textPrev:"Loadpreviousitems",htmlPrev:'<divclass="ias-triggerias-trigger-prev"style="text-align:center;cursor:pointer;"><a>{text}</a></div>',offset:0},IASTriggerExtension.prototype.priority=1e3;

上面代码是自别的网站上扒下来的，研究用的。功能仿知乎首页信息瀑布流功能。