在iOS UIAlertController中，我们可以左对齐UIAlertAction的文本吗

// 创建一个UIAlertController
let alertController = UIAlertController(title: "标题", message: "消息", preferredStyle: .alert)

// 创建一个自定义的UIView
let customView = UIView(frame: CGRect(x: 0, y: 0, width: alertController.view.frame.width, height: 50))
let label = UILabel(frame: customView.bounds)
label.textAlignment = .left
label.text = "左对齐的文本"
customView.addSubview(label)

// 创建一个UIAlertAction，并将自定义的UIView设置为customView
let action = UIAlertAction(title: "", style: .default, handler: nil)
action.setValue(customView, forKey: "customView")

// 将UIAlertAction添加到UIAlertController中
alertController.addAction(action)

// 显示UIAlertController
self.present(alertController, animated: true, completion: nil)