如何使tableview节具有一个具有可选大小写的枚举

enum LetterCaseOption {
    case uppercase
    case lowercase
    case none
}

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
    
    let letterCaseOption: LetterCaseOption = .uppercase // 这里可以根据需要设置大小写选项
    
    let text = "Example Text"
    
    switch letterCaseOption {
    case .uppercase:
        cell.textLabel?.text = text.uppercased()
    case .lowercase:
        cell.textLabel?.text = text.lowercased()
    case .none:
        cell.textLabel?.text = text
    }
    
    return cell
}

func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
    let letterCaseOption: LetterCaseOption = .uppercase // 这里可以根据需要设置大小写选项
    
    let sectionTitle = "Section Title"
    
    switch letterCaseOption {
    case .uppercase:
        return sectionTitle.uppercased()
    case .lowercase:
        return sectionTitle.lowercased()
    case .none:
        return sectionTitle
    }
}