h5自定义audio的解析

<!-- cur表示当前时间 max表示总时长 input表示进度条 -->
<span class='cur'></span><input type="range" min=0 max=100 class='range' value=0><span class='max'></span>

/* 进度条 */
.range { 
 width: 5.875rem; 
 height: 0.15rem; 
 background: #2386e4; 
 border-radius: 0.25rem; 
 -webkit-appearance: none !important; 
 position: absolute; 
 top: 3.55rem; 
 left: 6rem; 
} 
/* 进度滑块 */
.range::-webkit-slider-thumb { 
 width: 0.5rem; 
 height: 0.5rem; 
 background: #fff; 
 border: 1px solid #f100; 
 cursor: pointer; 
 border-radius: 0.25rem; 
 -webkit-appearance: none !important; 
}

//将秒数转为00:00格式 
function timeToStr(time) { 
 var m = 0, 
 s = 0, 
 _m = '00', 
 _s = '00'; 
 time = Math.floor(time % 3600); 
 m = Math.floor(time / 60); 
 s = Math.floor(time % 60); 
 _s = s < 10 ? '0' + s : s + ''; 
 _m = m < 10 ? '0' + m : m + ''; 
 return _m + ":" + _s; 
} 
//触发播放事件 
$('.play').on('click',function(){ 
 var audio=document.getElementById('ao'); 
 audio.play(); 
 setInterval(function(){ 
 var t=parseInt(audio.currentTime); 
 $(".range").attr({'max':751}); 
 $('.max').html(timeToStr(751)); 
 $(".range").val(t); 
 $('.cur').text(timeToStr(t)); 
 },1000); 
}); 
//监听滑块，可以拖动 
$(".range").on('change',function(){ 
 document.getElementById('ao').currentTime=this.value;$(".range").val(this.value); 
});