function viewVideoOrImg(src) {
// 创建一个下载链接
const downloadLink = document.createElement('a');
downloadLink.href = src;
downloadLink.target = '_blank';
// 设置下载链接的显示名称
// downloadLink.download = 'downloaded-image.png';
// 模拟用户点击下载链接
downloadLink.click();
}