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JS實(shí)現(xiàn)滑動(dòng)導(dǎo)航效果

更新時(shí)間：2020年01月14日 15:48:50 作者：qq_41557320

這篇文章主要為大家詳細(xì)介紹了JS實(shí)現(xiàn)滑動(dòng)導(dǎo)航效果，文中示例代碼介紹的非常詳細(xì)，具有一定的參考價(jià)值，感興趣的小伙伴們可以參考一下

本文實(shí)例為大家分享了JS實(shí)現(xiàn)滑動(dòng)導(dǎo)航效果的具體代碼，供大家參考，具體內(nèi)容如下

<!doctype html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <meta name="viewport"
   content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
 <meta http-equiv="X-UA-Compatible" content="ie=edge">
 <title>Document</title>
 <style>
  * {
   padding: 0;
   margin: 0;
  }
  ul {
   list-style-type: none;
   height: 42px;
   position: absolute;
  }
  img {
   vertical-align: middle;
  }
  li,
  a {
   cursor: pointer;
  }
  a {
   text-decoration: none;
   color: #000000;
   display: block;
  }
  li {
   width: 83px;
   height: 42px;
   /*background-color: pink;*/
   float: left;
   text-align: center;
   line-height: 42px;
  }
  .box {
   position: relative;
   width: 530px;
   height: 42px;
   border: 1px solid deepskyblue;
   margin: 100px auto;
   -webkit-border-radius: 10px;
   -moz-border-radius: 10px;
   border-radius: 10px;
  }
  .box img#cloud {
   width: 83px;
   height: 42px;
   position: absolute;
   left: 0;
   top: 0;
  }
  .box img#xinhao {
   position: absolute;
   right: 0;
   top: 50%;
   transform: translateY(-50%);
  }
 </style>
</head>
<body>
<div class="box" id="box">
 <img id="cloud" src="images/cloud.gif" alt="" />
 <ul id="ull">
  <li><a href="#">長(zhǎng)沙校區(qū)</a></li>
  <li><a href="#">長(zhǎng)沙校區(qū)</a></li>
  <li><a href="#">長(zhǎng)沙校區(qū)</a></li>
  <li><a href="#">長(zhǎng)沙校區(qū)</a></li>
  <li><a href="#">長(zhǎng)沙校區(qū)</a></li>
  <li><a href="#">長(zhǎng)沙校區(qū)</a></li>
 </ul>
 <img id="xinhao" src="images/rss.png" alt="" />
</div>
<script src="js/common.js"></script>
<script src="js/changespead.js"></script>
<script>
 //獲取每一個(gè)li
 var list=my$('ull').children;
 console.log(list);
 //獲取到筋斗云圖片
 var im=my$('cloud');
 //獲取圖片的寬度
 var imgWidth=im.offsetWidth;
 console.log(imgWidth);
 for(var i=0;i<list.length;i++){
  //設(shè)置index值用來(lái)儲(chǔ)存移動(dòng)的距離
  list[i].setAttribute('index',i);
  //遍歷所有l(wèi)i，每個(gè)li綁定三個(gè)時(shí)間指向同一個(gè)函數(shù)f1
  list[i].onmouseover=f1;
  list[i].onmouseout=f1;
  list[i].onclick=f1;
  //實(shí)現(xiàn)函數(shù)f1
  function f1(e){
   switch(e.type) {
    case 'mouseover':
     //獲取當(dāng)前l(fā)i的index值
     index=this.getAttribute('index');
     //調(diào)用變速移動(dòng)函數(shù)
     movecs(im,imgWidth*index);
     break;
    case 'click':
     index=this.getAttribute('index');
     //點(diǎn)擊之后固定
     im.style.left=imgWidth*index+'px';
     //點(diǎn)擊了其中一個(gè)li之后的操作，移開(kāi)鼠標(biāo)之后不會(huì)彈回去
     this.onmouseout=false;
     for(var k=0;k<list.length;k++){
      list[k].setAttribute('jndex',k);

      list[k].onmouseover=function(){
       jndex=this.getAttribute('jndex');
       movecs(im,imgWidth*jndex);
      };
      list[k].onmouseout=function(){
       movecs(im,imgWidth*index);
      };
     }
     break;
    case 'mouseout':

     index=0;
     movecs(im,imgWidth*index);
     break;
   }
  }
 }



 /*list[i].onmouseover=function(){
   index=this.getAttribute('index');
   console.log(index);
   movecs(im,imgWidth*index);
  };
  list[i].onmouseout=function(){
   index=0;
   // im.style.left='0px';
   movecs(im,imgWidth*index);
  };

  list[i].onclick=function(){
   index=this.getAttribute('index');
   im.style.left=imgWidth*index+'px';
   alert(index);
  };*/
</script>
</body>
</html>

最終效果如下：云彩跟隨鼠標(biāo)移動(dòng)，點(diǎn)擊固定