使用javascript下载嵌入在html video标签中的视频

var videoElement = document.querySelector('video');
var videoSrc = videoElement.getAttribute('src');

var downloadLink = document.createElement('a');
downloadLink.href = videoSrc;

downloadLink.download = 'video.mp4'; // 设置下载的文件名
downloadLink.type = 'video/mp4'; // 设置文件类型

document.body.appendChild(downloadLink);

downloadLink.click();

var videoElement = document.querySelector('video');
var videoSrc = videoElement.getAttribute('src');

var downloadLink = document.createElement('a');
downloadLink.href = videoSrc;
downloadLink.download = 'video.mp4';
downloadLink.type = 'video/mp4';

document.body.appendChild(downloadLink);

downloadLink.click();