祝花潮论坛朋友们元宵节快乐！

加林森 · 发表于 2022-2-15 12:45

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本帖最后由加林森于 2022-2-15 12:53 编辑 <br /><br /><style>

#bigPa { position: relative; left:- 100px; width: 800px; height: 480px; background:#333 url('https://pic.imgdb.cn/item/620b312f2ab3f51d918467dc.jpg') no-repeat center/cover; box-shadow: 0 0 0 2px #111; }
#gcDiv { width: 500px; float: right; column-count:2; color: #eee; font-size: 1em; text-shadow: 1px 1px 1px #111; }
#paDiv { position: relative; left: 10px; top: 10px; width: 220px; display: flex; align-items: center; border: 1px solid olive; border-radius: 8px 0px 8px 0px; background: rgba(0,0,0,.8); box-shadow: 1px 1px 2px #000; }
#jindu { position: relative; width: 200px; height: 8px; line-height: 8px; font-size: 10px; color: #eee; text-align: center; background: linear-gradient(90deg, olive, green) no-repeat; background-size: 8px 0px; cursor: pointer; }
#btn-ro { width: 20px; height: 20px; line-height: 20px; font-size: 12px; background: linear-gradient(blue, silver, red); outline:none; color: white; border-radius: 50%; text-align: center; cursor: pointer; animation: rol linear 2s infinite; }
#btn-ro:hover { opacity: 0.8; }
#btn-ro:active { opacity: 1; }
@keyframes rol { to { transform:rotate(360deg); } }

</style>

<div id="bigPa">
<div id="paDiv">
<div id="btn-ro">·</div>
<div id="jindu">
<div id="jd-go"></div>
</div>
</div>
</div>
</div>

<script language="javascript">

var btn = document.getElementById('btn-ro');
var jindu = document.getElementById('jindu');
var aud = document.createElement('audio');
aud.loop = true;
// 音乐地址放在下行引号内
aud.src = "https://www.joy127.com/url/88662.mp3";
aud.addEventListener('ended', function() { btn.style.animationPlayState="paused"; }, true);
aud.addEventListener('timeupdate', tmMsg, true);
aud.play();

function tmMsg(){ //进度条
let auT = Math.floor(aud.duration - aud.currentTime);
let auM = auT / 60;
let auMs = parseInt(auM);
if (auMs <10) auMs = "0" + auMs;
let auS = auT % 60;
let auSs = Math.round(auS);
if (auSs < 10) auSs = "0" + auSs;
jindu.innerHTML = "- " + auMs +":" + auSs;
let jd = (100*aud.currentTime)/aud.duration;
jindu.style.backgroundSize = jd+ "% 8px";
}

jindu.onclick = function(){ //进度控制
let w = offset(jindu,"left");
let x = (event.clientX - w) * aud.duration / jindu.clientWidth;
aud.currentTime = x;
}

function offset(obj,direction){//获取父级元素偏移总量
let offsetDir = "offset" + direction[0].toUpperCase()+direction.substring(1);
let realNum = obj[offsetDir];
let positionParent = obj.offsetParent;
while(positionParent != null){
realNum += positionParent[offsetDir];
positionParent = positionParent.offsetParent;
}
return realNum;
}

btn.onclick = function(){ // 暂停&播放
aud.paused ? (aud.play(), btn.style.animationPlayState="running") : (aud.pause(), btn.style.animationPlayState="paused");
}

</script>