<!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <!--<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no, minimal-ui">--> <meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=no" /> <meta name="HandheldFriendly" content="true" /> <meta name="MobileOptimized" content="320" /> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black"> <title>input视频测试</title> </head> <body> <!--拍照 <input id="myfile" type="file" name="file" accept="image/*" capture="camera"> --> //拍视频 <input type="file" name="video" id="video-input" accept="video/*" capture="user" onchange="videoChange()" /> <p style="font-size: 14px">附： <br>只允许调起摄像头，不允许选择文件 <br>活体的视频大小不能超8Mb，时长不能超6秒 <br><span id='info'></span> </p> <video id="video" width='300' height="300" controls autoplay></video> <script type="text/javascript"> function videoChange() { var file = document.getElementById('video-input').files[0]; var fileSize = (Math.round(file.size / 1024)).toFixed(); document.getElementById('info').innerHTML += "所录视频大小约为：" + (fileSize / 1024).toFixed(2) + "Mb"; var url = URL.createObjectURL(file); console.log(url); document.getElementById("video").src = url; } </script> </body> </html>