SWIFT3.0Button添加事件

 作为一个刚刚开始自己写Swift项目的新手，只是作为自己的一个学习笔记，希望以后看起来觉得搞笑

for i in 1...3 {

            let btnY = btnHeight*i

        let btn = UIButton(type: .custom)

            btn.frame = CGRect(x: brnX, y: btnY, width: btnWidth, height: btnHeight)

            btn.setTitle(array[i], for: .normal)

            btn.tag = i+2016102700

            btn.addTarget(self, action: #selector(btnClick(sender:)), for:

                .touchUpInside)

        }

 func btnClick(sender:UIButton?) {

        let tags = sender?.tag

        switch tags! {

        case 2016102700://登录

            let loginVC = FCLoginVC()

            loginVC.title = "登录"

            navigationController?.pushViewController(loginVC, animated: true)

            break

        case 2016102701://注册

            let registVC = FCRegisterVC()

            registVC.title = "注册"

            navigationController?.pushViewController(registVC, animated: true)

            break

        case 2016102702:

//            let loginVC = fc()

//            loginVC.title = "登录"

//            navigationController?.pushViewController(loginVC, animated: true)

            break

  

        default: break

            

        }