let btn = UIButton(type: .custom)
        btn.frame = CGRect(x: 100, y: 200, width: 100, height: 30)
        //設(shè)置按鈕標(biāo)題
        btn.setTitle("按鈕", for: .normal)
        //設(shè)置標(biāo)題顏色
        btn.setTitleColor(UIColor.blue, for: .normal)
        btn.setTitleColor(UIColor.gray, for: .highlighted)
        //設(shè)置陰影顏色
        btn.setTitleShadowColor(UIColor.orange, for: .normal)
        //設(shè)置按鈕文字大小
        btn.titleLabel?.font = UIFont.systemFont(ofSize: 12)
        
        btn.setImage(UIImage(named:"2015122209433537916"), for: .normal)//設(shè)置圖標(biāo)

        btn.adjustsImageWhenHighlighted=false //使觸摸模式下按鈕也不會(huì)變暗（半透明）
        btn.adjustsImageWhenDisabled=false //使禁用模式下按鈕也不會(huì)變暗（半透明）
        
        //傳遞觸摸對(duì)象（即點(diǎn)擊的按鈕），需要在定義action參數(shù)時(shí)，方法名稱后面帶上冒號(hào)
        btn.addTarget(self, action: #selector(btnClick(_:)), for: .touchUpInside)
        
        //btn.addTarget(self, action:#selector(tapped(_:)), for:.touchUpInside)
        
        //添加按鈕
        self.view.addSubview(btn)
        
        
        //按鈕文字圖片
        //圖片不顯示是因?yàn)閳D片尺寸太大
        let btn1:UIButton = UIButton(frame: CGRect(x: 50, y: 50, width: 180, height: 32))
        btn1.setImage(UIImage(named: "2015122209433537916"), for: UIControlState.normal) //按鈕圖標(biāo)
        btn1.titleLabel?.font = UIFont.boldSystemFont(ofSize: 28) //文字大小
        btn1.setTitle("帶圖標(biāo)按鈕", for: UIControlState.normal) //按鈕文字
        btn1.setTitleColor(UIColor.orange, for: UIControlState.normal) //文字顏色
        //不傳遞觸摸對(duì)象（即點(diǎn)擊的按鈕）
        btn1.addTarget(self, action: #selector(click), for: .touchUpInside)
        self.view.addSubview(btn1)

    func click()
    {
        print("點(diǎn)擊按鈕啦")
    }

    func btnClick(_ button:UIButton)
    {
        print("點(diǎn)擊按鈕啦")
    }