如何以编程方式将不同单元格的不同图像添加到tableView (Swift)

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "customCell", for: indexPath) as! CustomTableViewCell

    // 根据indexPath设置图像
    switch indexPath.row {
    case 0:
        cell.imageView?.image = UIImage(named: "image1")
    case 1:
        cell.imageView?.image = UIImage(named: "image2")
    case 2:
        cell.imageView?.image = UIImage(named: "image3")
    default:
        cell.imageView?.image = UIImage(named: "defaultImage")
    }

    return cell
}

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    if let cell = tableView.cellForRow(at: indexPath) as? CustomTableViewCell {
        // 根据indexPath设置图像
        switch indexPath.row {
        case 0:
            cell.imageView?.image = UIImage(named: "selectedImage1")
        case 1:
            cell.imageView?.image = UIImage(named: "selectedImage2")
        case 2:
            cell.imageView?.image = UIImage(named: "selectedImage3")
        default:
            cell.imageView?.image = UIImage(named: "defaultImage")
        }
    }
}