有没有一个函数可以用来找出哪个UIButton被按下了，并返回true或false？

func buttonPressed(sender: UIButton) {
    // 按钮被按下时执行的操作
    print("Button pressed!")
}

// 创建按钮
let button = UIButton(type: .system)
button.setTitle("Press me", for: .normal)
button.frame = CGRect(x: 100, y: 100, width: 100, height: 50)

// 添加按钮点击事件监听
button.addTarget(self, action: #selector(buttonPressed(sender:)), for: .touchUpInside)

// 将按钮添加到视图中
view.addSubview(button)

func buttonPressed(sender: UIButton) {
    if sender.tag == 1 {
        print("Button 1 pressed!")
        return true
    } else if sender.tag == 2 {
        print("Button 2 pressed!")
        return true
    } else {
        print("Unknown button pressed!")
        return false
    }
}

// 创建按钮1
let button1 = UIButton(type: .system)
button1.setTitle("Button 1", for: .normal)
button1.frame = CGRect(x: 100, y: 100, width: 100, height: 50)
button1.tag = 1
button1.addTarget(self, action: #selector(buttonPressed(sender:)), for: .touchUpInside)
view.addSubview(button1)

// 创建按钮2
let button2 = UIButton(type: .system)
button2.setTitle("Button 2", for: .normal)
button2.frame = CGRect(x: 100, y: 200, width: 100, height: 50)
button2.tag = 2
button2.addTarget(self, action: #selector(buttonPressed(sender:)), for: .touchUpInside)
view.addSubview(button2)