如何在编辑模式下启动UITextView(iPhone)？

import UIKit

override func viewDidLoad() {
    super.viewDidLoad()

    textView.delegate = self
    NotificationCenter.default.addObserver(self, selector: #selector(textViewDidBeginEditing), name: UITextView.textDidBeginEditingNotification, object: textView)
}

@objc func textViewDidBeginEditing() {
    // 在此处添加您的代码，以便在编辑模式下启动UITextView
}

deinit {
    NotificationCenter.default.removeObserver(self, name: UITextView.textDidBeginEditingNotification, object: textView)
}