< video style = "display:none;" controls = "controls" id = "aa" > </video>
<input type = "file" onchange = "changeFile(this)" >
<script>
function myFunction(ele) {
//视频时长 单位秒
alert(Math.floor(ele.duration))
}
document.querySelector('#aa').addEventListener('canplaythrough', (ret) => {
if (ret.path && ret.path[0].duration) {
console.log(ret.path[0].duration)
} else if (ret.target && ret.target.duration) {
console.log(ret.target.duration)
}
})
function changeFile(ele) {
var video = ele.files[0];
var url = URL.createObjectURL(video);
console.log(url);
document.getElementById("aa").src = url;
}
</script>