<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
</head>
<script type="text/javascript" src="js/jquery.js" ></script>
<body>
<video id="myvideo" width="80%" height="80%" controls="controls" poster="img/cars.png">
<source src="mycdn/bfcs.mp4" type="video/mp4">
</video>
<script type="text/javascript">
var video = document.getElementById(‘myvideo‘);
var currentTime = localStorage.getItem("currentTime");
console.log(currentTime);
video.addEventListener("loadedmetadata",function(){
this.currentTime = currentTime;
});
video.addEventListener("timeupdate",function(){
var currentTime = Math.floor(video.currentTime);
localStorage.setItem("currentTime",currentTime);
console.log(localStorage.getItem("currentTime"));
});
</script>
</body>
</html>
原文：https://www.cnblogs.com/striver20/p/14415097.html