如何动态更新Json文件swift 5

guard let fileURL = Bundle.main.url(forResource: "data", withExtension: "json") else {
    print("JSON file not found")
    return
}

do {
    let jsonData = try Data(contentsOf: fileURL)
    let jsonObject = try JSONSerialization.jsonObject(with: jsonData, options: [])
    
    if let jsonDictionary = jsonObject as? [String: Any] {
        // 在这里可以对JSON数据进行操作和更新
        // 例如，可以修改字典中的某个键值对
        jsonDictionary["key"] = "new value"
        
        // 将更新后的JSON数据转换回Data类型
        let updatedData = try JSONSerialization.data(withJSONObject: jsonDictionary, options: .prettyPrinted)
        
        // 将更新后的Data写入文件
        try updatedData.write(to: fileURL)
        
        print("JSON file updated successfully")
    } else {
        print("Invalid JSON format")
    }
} catch {
    print("Error updating JSON file: \(error)")
}