Swift 3| Xcode 8 datePicker更新UItextField

import UIKit

class ViewController: UIViewController {
    @IBOutlet weak var textField: UITextField!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 创建一个UIDatePicker实例
        let datePicker = UIDatePicker()
        datePicker.datePickerMode = .dateAndTime
        datePicker.addTarget(self, action: #selector(datePickerValueChanged(_:)), for: .valueChanged)
        
        // 创建一个UITextField实例
        textField.placeholder = "选择日期和时间"
        textField.inputView = datePicker
    }
    
    @objc func datePickerValueChanged(_ sender: UIDatePicker) {
        // 格式化选择的日期和时间
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "yyyy-MM-dd HH:mm"
        let selectedDate = dateFormatter.string(from: sender.date)
        
        // 更新UITextField的文本值
        textField.text = selectedDate
    }
}