在UIAlertView上获得一些错误

let alertController = UIAlertController(title: "错误", message: "发生了一些错误", preferredStyle: .alert)
let okAction = UIAlertAction(title: "确定", style: .default, handler: nil)
alertController.addAction(okAction)
self.present(alertController, animated: true, completion: nil)

// 检查是否正确地初始化了UIAlertView
let alertView = UIAlertView(title: "错误", message: "发生了一些错误", delegate: nil, cancelButtonTitle: "确定")

// 检查是否正确地显示了UIAlertView
alertView.show()

DispatchQueue.main.async {
    let alertView = UIAlertView(title: "错误", message: "发生了一些错误", delegate: nil, cancelButtonTitle: "确定")
    alertView.show()
}