问Google Firebase如何捕获特定的Auth异常错误-统一

EN

protected bool LogTaskCompletion(Task task, string operation)
{
    bool complete = false;
    if (task.IsCanceled)
    {
        Debug.Log(operation + " canceled.");
    }
    else if (task.IsFaulted)
    {
        Debug.Log(operation + " encounted an error.");
        foreach (Exception exception in task.Exception.Flatten().InnerExceptions)
        {
            string authErrorCode = "";
            Firebase.FirebaseException firebaseEx = exception as Firebase.FirebaseException;
            if (firebaseEx != null)
            {
                authErrorCode = String.Format("AuthError.{0}: ",
                  ((Firebase.Auth.AuthError)firebaseEx.ErrorCode).ToString());
            }
            Debug.Log("number- "+ authErrorCode +"the exception is- "+ exception.ToString());
            string code = ((Firebase.Auth.AuthError)firebaseEx.ErrorCode).ToString();
            Debug.Log(code);
        }
    }
    else if (task.IsCompleted)
    {
        Debug.Log(operation + " completed");
        complete = true;
    }
    return complete;
}