html5结合javascript实现简易音乐播放器

1、HTML代码

	

		
一月，银装轻舞-紫竹笛韵
		
		
		

			play
			pause
			prev
			next
		
	

2、播放暂停切换效果实现

// 播放
play.Onclick= function(){
	if(audio.paused){
		audio.play();
	}
}
 
// 暂停
pause.Onclick= function(){
	if(audio.played){
		audio.pause();
	}
}

自动切换下一首

audio.addEventListener(&＃39;ended&＃39;,function(){
	next.onclick();
},false);

3、歌曲切换时歌曲图片与当前背景也随着改变

// 上一首
prev.Onclick= function(){
	num = (num + len - 1) % len;
	audio.src = &＃39;./music/&＃39; + music[num] + &＃39;.mp3&＃39;;
	musicName.innerHTML = music[num];
	bgImage.style.backgroundImage = &＃39;url(./image/&＃39; + music[num] + &＃39;.jpg)&＃39;;
	musicImg.src = &＃39;./image/&＃39; + music[num] + &＃39;.jpg&＃39;;
	audio.play();
}
 
// 下一首
next.Onclick= function(){
	num = (num + 1) % len;
	audio.src = &＃39;./music/&＃39; + music[num] + &＃39;.mp3&＃39;;
	musicName.innerHTML = music[num];
	bgImage.style.backgroundImage = &＃39;url(./image/&＃39; + music[num] + &＃39;.jpg)&＃39;;
	musicImg.src = &＃39;./image/&＃39; + music[num] + &＃39;.jpg&＃39;;
	audio.play();
}

4、实现背景图片透明，内容不透明效果

#music {
	width: 500px;
	height: 500px;
	border-radius: 10px;
	margin: 20px auto;
	position: relative;
	background: url(./image/一月，银装轻舞-紫竹笛韵.jpg) no-repeat;
	background-size: cover;
	text-align: center;
}
#container {
	position: absolute;
	left: 0;
	right: 0;
	top: 0;
	bottom: 0;
	width: 500px;
	height: 500px;
	text-align: center;
	background:rgba(255,255,255,0.6);
}