陪伴而非守候
<!DOCTYPE html><html><head><meta charset="UTF-8"><title>capture screen</title></head><body><video id="video" controls="controls"><source src="123.MP4"></video><div id="output"></div><script type="text/javascript">(function(){var video, output;var scale = 0.8;var initialize = function() {output = document.getElementById("output");video = document.getElementById("video");video.addEventListener('loadeddata',captureImage);}; var captureImage = function() { var canvas = document.createElement("canvas"); canvas.width = video.videoWidth * scale; canvas.height = video.videoHeight * scale; canvas.getContext('2d').drawImage(video, 0, 0, canvas.width, canvas.height); var img = document.createElement("img"); img.src = canvas.toDataURL("image/png"); output.appendChild(img);}; initialize();})();</script></body></html>也是在这里面找到的。你试下