Swift3 3个按钮的单选按钮逻辑

我试图显示3个单选按钮。如果选择了按钮1，则应禁用剩余的按钮2。如果选择按钮2，则应禁用按钮1和3。最后，如果选择按钮3，则应禁用1和2。我尝试了多种方法，但没有成功。这是我的代码，谢谢你的帮助

@IBAction func button1Clicked(_ sender: UIButton) {
    if button2.isSelected {
        button2.isSelected = false
        button1.isSelected = true
    } else {
        button1.isSelected = true
    }
}

@IBAction func button2Clicked(_ sender: UIButton) {
    if button1.isSelected {
        button1.isSelected = false
        button2.isSelected = true
    } else {
        button2.isSelected = true
    }
}


@IBAction func button3Clicked(_ sender: UIButton) {
    if button3.isSelected {
        button3.isSelected = false
        button2.isSelected = true
        //button1.isSelected = true
    } else {
        button1.isSelected = true
    }
}

---

通过更改按钮的UIImage，您可以这样尝试：

@IBAction func mr(_ sender: Any) {
    mrOutlet.setImage(UIImage(named: "check"), for: .normal)
    msOutlet.setImage(UIImage(named: "uncheck"), for: .normal)
    mrsOutlet.setImage(UIImage(named: "uncheck"), for: .normal)
    salutation = "Mr."
}

@IBAction func ms(_ sender: Any) {
     msOutlet.setImage(UIImage(named: "check"), for: .normal)
    mrOutlet.setImage(UIImage(named: "uncheck"), for: .normal)
    mrsOutlet.setImage(UIImage(named: "uncheck"), for: .normal)
    salutation = "Ms."
}

@IBAction func mrs(_ sender: Any) {
     mrsOutlet.setImage(UIImage(named: "check"), for: .normal)
    mrOutlet.setImage(UIImage(named: "uncheck"), for: .normal)
    msOutlet.setImage(UIImage(named: "uncheck"), for: .normal)
    salutation = "Mrs."
}

希望这有助于：