如何在具有动态高度的表格视图单元格中显示图像？

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! CustomTableViewCell
    
    let imageURL = data[indexPath.row].imageURL
    
    // 创建UIImageView实例
    let imageView = UIImageView(frame: cell.contentView.bounds)
    imageView.contentMode = .scaleAspectFit
    
    // 异步加载图像
    DispatchQueue.global().async {
        if let url = URL(string: imageURL) {
            if let data = try? Data(contentsOf: url) {
                let image = UIImage(data: data)
                
                // 在主线程更新UI
                DispatchQueue.main.async {
                    imageView.image = image
                }
            }
        }
    }
    
    // 添加UIImageView到单元格的contentView
    cell.contentView.addSubview(imageView)
    
    return cell
}