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急求急求,怎么輪播小圓點(diǎn)按鈕點(diǎn)擊的位置改變不了

急求急求,怎么輪播小圓點(diǎn)按鈕點(diǎn)擊的位置改變不了

qq_10_11 2017-04-09 21:03:06
<!DOCTYPE html><html lang="en"><head> ? ?<meta charset="UTF-8"> ? ?<title>Title</title> ? ?<style> * { ? ? ? ? ? ?margin: 0; padding: 0; list-style: none; } ? ? ? ?.box { ? ? ? ? ? ?width: 490px; height: 170px; border: 1px solid #000000; margin: 100px auto; padding: 5px; position: relative; } ? ? ? ?.box .slider{ ? ? ? ? ? ?width: 100%; height: 100%; } ? ? ? ?.box .slider ul{ ? ? ? ? ? ?width: 100%; height: 100%; position: absolute; left: 5px; bottom: 0px; } ? ? ? ?.box .slider li{ ? ? ? ? ? ?position: absolute; top:5px; left: 490px; } ? ? ? ?.box ol{ ? ? ? ? ? ?text-align: center; } ? ? ? ?.box ol .btn{ ? ? ? ? ? ?width: 20px; height: 20px; border-radius:50%; background: #cccccc; display: inline-block; margin: 0 5px; cursor: pointer; overflow: hidden; } ? ? ? ?.box ol .btn.cur{ ? ? ? ? ? ?background: red; } ? ?</style></head><body><div class="box"> ? ?<div class="slider"> ? ? ? ?<ul> ? ? ? ? ? ?<li><img src="images/01.jpg" alt=""></li> ? ? ? ? ? ?<li><img src="images/02.jpg" alt=""></li> ? ? ? ? ? ?<li><img src="images/03.jpg" alt=""></li> ? ? ? ? ? ?<li><img src="images/04.jpg" alt=""></li> ? ? ? ? ? ?<li><img src="images/05.jpg" alt=""></li> ? ? ? ?</ul> ? ?</div> ? ?<ol> <!--<li class="btn cur"></li> ? ? ? ?<li class="btn "></li> ? ? ? ?<li class="btn "></li> ? ? ? ?<li class="btn "></li> ? ? ? ?<li class="btn "></li>--> </ol></div></body></html><script src="gd.js"></script><script> var obox=document.querySelector(".box"); var slider=obox.querySelector(".slider"); var ali=slider.children[0].querySelectorAll("li"); var oOl=obox.querySelector("ol"); var oli=obox.children[1].children; init(); a(); //生成圓點(diǎn) function init() { ? ? ? ?for (var i=0;i<ali.length;i++) ? ? ? ?{ ? ? ? ? ? ?var oli= document.createElement("li"); //oli.innerHTML= oli.length;添加文本 oOl.insertBefore(oli,oOl.children[0]); oli.setAttribute("class","btn") ? ? ? ?} ? ? ? ?oOl.children[0].className="btn cur"; ali[0].style.left= "0px"; } ? ?//輪播 function a() { ? ? ? ? ? ?oli.onclick=function(){ ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?for(var i=0;i<oli.length;i++) ? ? ? ? ? ? ? ?{ ? ? ? ? ? ? ? ? ? ?oli[i].className = "btn"; } ? ? ? ? ? ? ? ?oli[i].className = "btn cur"; } ? ?}</script>
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1 回答

已采納
?
千秋此意

TA貢獻(xiàn)158條經(jīng)驗(yàn) 獲得超188個(gè)贊

function?a()?{
????for?(var?i?=?0;?i?<?oli.length;?i++)?{
????????oli[i].onclick?=?function(iNow)?{
????????????return?function()?{
????????????????for?(var?i?=?0;?i?<?oli.length;?i++)?{
????????????????????oli[i].className?=?"btn";
????????????????}
????????????????oli[iNow].className?=?"btn?cur";
????????????}
????????}(i);
????}
}

函數(shù)a這樣寫(xiě)小圓點(diǎn)就能動(dòng)了(沒(méi)素材其他地方我沒(méi)改)

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2 反對(duì) 回復(fù) 2017-04-09
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慕瓜9220888

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反對(duì) 回復(fù) 2021-10-19
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