消暑第N天：听

马黑黑 · 发表于 2022-7-21 13:15

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本帖最后由马黑黑于 2022-7-21 13:22 编辑

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00:00

马黑黑 · 发表于 2022-7-21 13:16

本帖最后由马黑黑于 2022-7-21 13:18 编辑

代码：

<style>
#papa { left: -339.5px; width: 1275px; height: 717px; display: grid; place-items: center; background: lightblue url('https://638183.freep.cn/638183/Pic/38/lake.jpg') no-repeat center/cover; box-shadow: 3px 3px 20px #000; overflow: hidden; position: relative; }
#son { width: 700px; box-shadow: inherit; transform: scale(0) rotate(0); }
@keyframes in0 { from { transform: translate(-200%, -150%); } to { transform: translate(0%, 0%); } }
@keyframes out0 { from { transform: translate(0%, 0%); } to { transform: translate(200%, -150%); } }
@keyframes in1 { from { transform: translate(200%, -150%); } to { transform: translate(0%, 0%); } }
@keyframes out1 { from { transform: translate(0%, 0%); } to { transform: translate(200%, 150%); } }
@keyframes in2 { from { transform: translate(200%, 150%); } to { transform: translate(0%, 0%); } }
@keyframes out2 { from { transform: translate(0%, 0%); } to { transform: translate(-200%, 150%); } }
@keyframes in3 { from { transform: translate(-200%, 150%); } to { transform: translate(0%, 0%); } }
@keyframes out3 { from { transform: translate(0%, 0%); } to { transform: translate(-200%, -150%); } }
#papa p { margin: 0; padding: 0; }
#papa input { border: none; outline: none; opacity: .75; cursor: pointer; }
#playbox { position: absolute; left: 10px; bottom: 10px; padding: 10px; font: normal 1em sans-serif; color: #eee; background: rgba(255,255,255,.2); border-radius: 8px; backdrop-filter: blur(1px); overflow: hidden; box-shadow: 1px 1px 2px rgba(0,0,0,.15); z-index: 100; }
#btnplay { width: 30px; height: 30px; border-radius: 50%; }
#btnplay:hover { background: #aaa; color: #ff0000; }
</style>
<div id="papa">
<img id="son" alt="" src="https://638183.freep.cn/638183/Pic/38/st1.jpg" />
<div id="playbox">
<p id="geci" style="font-size: 1.2em; text-shadow: 1px 1px 1px #222">loading ... </p>
<p style="display: flex; align-items: center; gap: 4px; margin-top: 10px;">
<input id="btnplay" type="button" value=">" />
<input id="slider" type="range" min="0" max="100" value="0" />
<span id="per">00:00</span>
</p>
</div>
</div>
<audio id="aud" src="https://music.163.com/song/media/outer/url?id=29710964.mp3" autoplay="autoplay" loop="loop"></audio>
<script>
let aniId = 0, picId = 0;
let lrcAr = [ ['0.00','纯音乐 - Listen'], ['180.00','感谢支持'] ];
let picAr = Array.from({length:4}, (_, x) => 'https://638183.freep.cn/638183/Pic/38/st' + (x+1) + '.jpg');
let objAni = {
0: 'in0', 1: 'out0', 2: 'in1', 3: 'out1', 4: 'in2', 5: 'out2', 6: 'in3', 7: 'out3',
playMode: function() {
if(aniId % 2 == 0) {
son.src = picAr[picId];
picId ++;
if(picId > picAr.length - 1) picId = 0;
}
son.style.animation = this[aniId] + ' 2s linear forwards';
aniId ++;
if(aniId > 7) aniId = 0;
},
}
objAni.playMode()
setInterval('objAni.playMode()', 4000);
slider.onmousedown = () => aud.pause();
slider.onchange = () => { aud.currentTime = slider.value * aud.duration / 100; aud.play(); }
btnplay.onclick = () => aud.paused ? aud.play() : aud.pause();
aud.addEventListener('playing', () => btnplay.value = '||');
aud.addEventListener('pause', () => btnplay.value = '>');
aud.addEventListener('timeupdate', () => {
let prog = 100 * aud.currentTime / aud.duration;
slider.value = prog;
per.innerText = toMin(aud.currentTime) + ' | ' + toMin(aud.duration);
for(j=0; j<lrcAr.length; j++){
if(aud.currentTime >= lrcAr[j][0]) geci.innerHTML = lrcAr[j][1];
}
});
let toMin = (val) => {
if(!val) return '00:00';
val = Math.floor(val);
let min = parseInt(val / 60);
let sec = parseFloat(val % 60);
if(min < 10) min = '0' + min;
if(sec < 10) sec = '0' + sec;
return min + ':' + sec;
}
</script>

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马黑黑 · 发表于 2022-7-21 13:30

有多少张图片，就在第35行修改 {length: 4} 里的数字。

图片地址没有规律的，可将第35行，

let picAr = Array.from({length:4}, (_, x) => 'https://638183.freep.cn/638183/Pic/38/st' + (x+1) + '.jpg');

改为，

let picAr = [
'图片1',
'图片2',
'图片3',
'图片。。。',
'图片N'
];