如何更改UIPickerView中每个组件的宽度？

class ViewController: UIViewController, UIPickerViewDelegate {
    let pickerView = UIPickerView()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        pickerView.delegate = self
        view.addSubview(pickerView)
    }
    
    func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView {
        let label = UILabel()
        label.text = "Component \(component), Row \(row)"
        label.textAlignment = .center
        
        // 设置每个组件的宽度
        label.frame = CGRect(x: 0, y: 0, width: 100, height: 30)
        
        return label
    }
}