Home > Article > Web Front-end > JS implements music switching and playback in turn

JS implements music switching and playback in turn

php中世界最好的语言Original: 2018-04-16 10:09:003621browse

This time I will bring you JS to implement music switch playback and turn playback. What are the precautions for JS to implement music switch playback and turn playback. The following is a practical case. Let’s take a look. .

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>welcome</title>
 <style type="text/css">
  .content {
   width: 600px;
   margin:0 auto;
   border:1px solid red;
  }
  .left-bar {
   width: 300px;
   height: 200px;
   float: left;
   border:1px solid red;
  }
  ul li {
   list-style: none;
   margin-top: 20px;
   cursor: pointer;
  }
  li:hover {
   color: orange;
  }
 </style>
</head>
<body>
<p class="left-bar">
 <ul>
  <li class="music-name">十年</li>
  <li class="music-name">朋友</li>
  <li class="music-name">勇气</li>
 </ul>
</p>
<p class="content">
 <video src="" id="video1" controls autoplay></video>
 <button id="btn">按钮</button>
</p>
<script>
 window.onload = function() {
  // 歌曲列表
  var music = [
   {id: 1, name:"十年"},
   {id: 2, name:"朋友"},
   {id: 3, name:"勇气"}
  ]
  // 记录当前是哪首歌曲
  var currentMusic = 0;
  // 获取DOM
  var oVideo1 = document.querySelector("#video1");
  // 初始化
  oVideo1.src = music[0].name + '.mp3';
  // 歌曲结束事件
  oVideo1.onended = function() {
   currentMusic += 1;
   // 判断是否是最后一首
   if(currentMusic === music.length) {
    currentMusic = 0;
   }
   var sr = music[currentMusic].name + '.mp3';
   this.src=sr;
  }
  // 获取左边歌曲列表的DOM
  var aList = document.getElementsByClassName("music-name");
  for(var i=0; i<aList.length; i++) {
   // 为了知道具体是那一个li
   aList[i].index = i;
   // 给每一个li设定一个事件
   aList[i].onclick = function() {
    oVideo1.src = music[this.index].name + ".mp3";
   }
  }
 }
</script>
</body>
</html>

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

JS implements music switching and playback in turn

Related articles