JavaScriptベースのオーディオプレーヤーを開発する

<div id="audioPlayer">
  <div id="controls">
    <button id="playButton">播放</button>
    <button id="pauseButton">暂停</button>
  </div>
  <div id="progressBar">
    <div id="progress"></div>
    <div id="currentTime">00:00</div>
    <div id="duration">00:00</div>
  </div>
</div>

#audioPlayer {
  width: 300px;
  border: 1px solid #ccc;
  padding: 10px;
}

#controls {
  margin-bottom: 10px;
}

#playButton, #pauseButton {
  background-color: #333;
  color: #fff;
  padding: 8px 16px;
  border: none;
  margin-right: 10px;
}

#progressBar {
  background-color: #f1f1f1;
  height: 20px;
  position: relative;
}

#progress {
  background-color: #333;
  height: 100%;
  width: 0;
}

#currentTime, #duration {
  position: absolute;
  top: 0;
  line-height: 20px;
  width: 60px;
  text-align: center;
}

// 获取DOM元素
const audioPlayer = document.getElementById('audioPlayer');
const playButton = document.getElementById('playButton');
const pauseButton = document.getElementById('pauseButton');
const progress = document.getElementById('progress');
const currentTime = document.getElementById('currentTime');
const duration = document.getElementById('duration');

// 创建音频对象
const audio = new Audio();
audio.src = 'music.mp3'; // 替换成你的音频文件路径

// 播放按钮点击事件
playButton.addEventListener('click', function() {
  audio.play();
});

// 暂停按钮点击事件
pauseButton.addEventListener('click', function() {
  audio.pause();
});

// 更新进度条和当前播放时间
audio.addEventListener('timeupdate', function() {
  const progressPercentage = (audio.currentTime / audio.duration) * 100;
  progress.style.width = progressPercentage + '%';

  const minutes = Math.floor(audio.currentTime / 60);
  const seconds = Math.floor(audio.currentTime % 60);
  currentTime.textContent = `${minutes.toString().padStart(2, '0')}:${seconds.toString().padStart(2, '0')}`;
});

// 更新总时长
audio.addEventListener('loadedmetadata', function() {
  const minutes = Math.floor(audio.duration / 60);
  const seconds = Math.floor(audio.duration % 60);
  duration.textContent = `${minutes.toString().padStart(2, '0')}:${seconds.toString().padStart(2, '0')}`;
});