這個輪播一共五張圖片，每張是寬620高250。。。我先說下我的思路，我在box這個大的div里設置的是一張圖片的寬高，然后里面有個img的div，是拿來放圖片的，設置寬為3100也就是5張圖一共的寬度，box設置為over flow hidden。。。。基本上用這個布局來實現輪播。。。可是JS代碼我有點暈哎，望大神指導下！！function?playnext(){????//播放下一張 ????var?slidercontent?=?document.getElementById();???//在("這里填寫存放輪播圖圖片的ID") ????slidercontent.style.webkitTransition="all?.3s?linear";??//為輪播添加過渡效果 ????if(slidercontent.style.marginLeft==""){ ????????slidercontent.style.marginLeft="0px"; ????} ????var?sliderwidth?=?620;??????//每張圖片的大小 ????if(parseInt(slidercontent.style.marginLeft)>-2480){? ????????slidercontent.style.marginLeft=parseInt(slidercontent.style.marginLeft)-sliderwidth+"px"; ????}else{ ????????slidercontent.style.marginLeft="0px"; ????} } function?playprevious(){????//播放上一張 ????var?slidercontent?=?document.getElementById("lunbo2");? ????if(slidercontent.style.marginLeft==""){ ????????slidercontent.style.marginLeft="0px"; ????} ????var?sliderwidth?=?620;//每張圖片的大小 ????if(parseInt(slidercontent.style.marginLeft)<0){ ????????slidercontent.style.marginLeft=parseInt(slidercontent.style.marginLeft)+sliderwidth+"px"; ????}else{ ????????slidercontent.style.marginLeft="-2480px"; ????} }尤其不理解這段代碼。。。if(parseInt(slidercontent.style.marginLeft)>-2480){ ? ? ? ?slidercontent.style.marginLeft=parseInt(slidercontent.style.marginLeft)-sliderwidth+"px"; ? ?}else{ ? ? ? ?slidercontent.style.marginLeft="0px"; ? ?}}有木有大神能講細點，菜鳥一枚啊，超級感謝?。。。。。。?！1