在這個方法中實現(xiàn)

func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {  }

移動

let transform = CATransform3DIdentity
let transformation = CATransform3DTranslate(transform, 0, -40, 0)       
cell.layer.transform = transformation
cell.layer.opacity = 0.0 // 透明度漸變
cell.transform = CGAffineTransform(translationX: 0, y: 40)
UIView.animate(withDuration: 0.8) { 
    cell.layer.transform = CATransform3DIdentity
    cell.layer.opacity = 1
}