//button的title向左靠
let button = UIButton()
button.titleEdgeInsets = UIEdgrInsetsMake(0, -80, 0, 0)
self.view.addSubview(button)
//button的title向左靠
let button = UIButton()
button.titleEdgeInsets = UIEdgrInsetsMake(0, -80, 0, 0)
self.view.addSubview(button)