//1.創(chuàng)建

letbutton =UIButton(type:.custom)

button.frame=CGRect(x:200,y:200,width:70,height:40)

view.addSubview(button)

//2.設(shè)置標題

button.setTitle("呵呵", for: .normal)

button.setTitle("哈哈", for: .highlighted)

//3.選中

button.isSelected=false

//4.設(shè)置背景顏色

button.backgroundColor=UIColor.cyan

//5.設(shè)置背景圖片

button.setBackgroundImage(UIImage(named:"backImage"), for: .normal)

button.setBackgroundImage(UIImage(named:"backHightImage"), for: .highlighted)

//6.設(shè)置圖片

button.setImage(UIImage(named:"image"), for: .normal)

button.setImage(UIImage(named:"hightImage"), for: .highlighted)

//7.設(shè)置標題顏色

button.setTitleColor(UIColor.black, for: .normal);

button.setTitleColor(UIColor.red, for: .highlighted)

//8.設(shè)置標題文字大小

button.titleLabel?.font=UIFont.systemFont(ofSize:18)

//9.添加點擊響應事件

button.addTarget(self, action:#selector(buttonAction), for: .touchUpInside)

//10.響應事件方法