如何从字典中填充UIPickeView？

import UIKit

class ViewController: UIViewController, UIPickerViewDataSource, UIPickerViewDelegate {
    
    @IBOutlet weak var pickerView: UIPickerView!
    
    var dataDict: [String: String] = ["Option 1": "Value 1", "Option 2": "Value 2", "Option 3": "Value 3"]
    var pickerData: [String] = []
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 将字典的键添加到数组中
        pickerData = Array(dataDict.keys)
        
        // 设置UIPickerView的数据源和代理
        pickerView.dataSource = self
        pickerView.delegate = self
    }
    
    // MARK: - UIPickerViewDataSource
    
    func numberOfComponents(in pickerView: UIPickerView) -> Int {
        return 1 // 设置UIPickerView的列数为1
    }
    
    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        return pickerData.count // 返回数组的元素数量作为UIPickerView的行数
    }
    
    // MARK: - UIPickerViewDelegate
    
    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
        return pickerData[row] // 使用数组的元素作为UIPickerView的选项标题
    }
    
    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
        let selectedOption = pickerData[row]
        let selectedValue = dataDict[selectedOption]
        
        // 在选择选项时执行特定操作
        print("Selected option: \(selectedOption), value: \(selectedValue ?? "")")
    }
}