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JS实现音乐导航特效

人气:0

知识点

1.audio.play() 播放音频
2.audio.currentTime = 0 从头开始播放
3.引入工具库工具库

运行效果<

鼠标进入后,播放音频

代码

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title></title>
 <style>
  *{margin:0;padding: 0;list-style: none;border:0;}
  a{text-decoration: none;color: #000;}
  #nav{width: 900px;height: 40px;border: 1px solid #ccc;margin: 100px auto;overflow: hidden;}
  #nav ul{width: 910px;}
  #nav ul li{float: left;width: 100px;line-height: 40px;text-align: center;
   background: url("images/_r1_c1.png") no-repeat 0 0 ;border-right: 1px dashed #ccc;position: relative;}
  #nav ul li a{width: 100%;height: 100%;display: inline-block;}
  span{width: 100px;height: 40px;background-color: skyblue;position: absolute;left: 0;top: 40px;z-index: -1;}
 </style>
</head>
<body>
 <nav id="nav">
  <ul id="ul">
   <li><a href="">首页</a><span></span><audio src=" rel="external nofollow" source/a1.mp3"></audio></li>
   <li><a href="">新头条</a><span></span><audio src=" rel="external nofollow" source/a2.mp3"></audio></li>
   <li><a href="">电视剧</a><span></span><audio src=" rel="external nofollow" source/a3.mp3"></audio></li>
   <li><a href="">新电影</a><span></span><audio src=" rel="external nofollow" source/a4.mp3"></audio></li>
   <li><a href="">小游戏</a><span></span><audio src=" rel="external nofollow" source/a5.mp3"></audio></li>
   <li><a href="">小说汇</a><span></span><audio src=" rel="external nofollow" source/a6.mp3"></audio></li>
   <li><a href="">旅游假</a><span></span><audio src=" rel="external nofollow" source/a7.mp3"></audio></li>
   <li><a href="">正品购</a><span></span><audio src=" rel="external nofollow" source/a8.mp3"></audio></li>
   <li><a href="">今日团</a><span></span><audio src=" rel="external nofollow" source/a9.mp3"></audio></li>
  </ul>
 </nav>
<script src="../00MyTools/MyTools.js"></script>
<script>
 window.addEventListener('load', function (ev) {
   // 1. 获取需要的标签
   var ul = myTool.$('ul');
   var allLis = ul.children;

   // 2. 遍历
  for (var i = 0; i < allLis.length; i++) {
   allLis[i].style.backgroundPositionY = (i * -40) + 'px';

   // 2.1 鼠标进入
   allLis[i].addEventListener('mouseover', function () {
     // 2.2 缓动动画
     myTool.slowMoving(this.children[1], {"top": 0});
     // 2.3 播音乐
     this.children[2].play();
     this.children[2].currentTime = 0;
   });

   // 2.3 鼠标离开
   allLis[i].addEventListener('mouseout', function () {
    // 2.4 缓动动画
    myTool.slowMoving(this.children[1], {"top": 40});
   });
  }

 });
</script>
</body>
</html>
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