左右键“← →”实现快速翻页

             document.onkeydown=function(b){             b=(b)?b:window.event;             var page_index = "2";  //当前页             var page_num = "4";  //页面总数             if(""==page_index)return;                                     if(b.keyCode=="37"){                 if(page_index > 1){                    window.location.href="Left Arrow - url";                 }             }else if(b.keyCode=="39"){                 if(parseInt(page_index) < parseInt(page_num)){                    window.location.href="Right Arrow - url";                 }             }         }

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来自http://mobile.zol.com.cn?源码

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