在swift 4中将文本放入UISwitch中

import UIKit

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let switchControl = UISwitch(frame: CGRect(x: 50, y: 100, width: 0, height: 0))
        switchControl.isOn = true
        switchControl.addTarget(self, action: #selector(switchValueChanged(_:)), for: .valueChanged)
        view.addSubview(switchControl)
        
        let label = UILabel(frame: CGRect(x: 100, y: 95, width: 100, height: 30))
        label.text = "文本内容"
        view.addSubview(label)
    }
    
    @objc func switchValueChanged(_ sender: UISwitch) {
        if sender.isOn {
            print("开关打开")
        } else {
            print("开关关闭")
        }
    }
}