//先边框
contenVieww.layer.borderWidth = 0.6
contenVieww.layer.borderColor = //UIColor.init(red: 170 / 255, green: 177 / 255, blue: 170 / 255, alpha: 1.0).cgColor
UIColor.groupTableViewBackground.cgColor
//中阴影
contenVieww.layer.shadowColor = UIColor.init(red: 170 / 255, green: 177 / 255, blue: 170 / 255, alpha: 1.0).cgColor
contenVieww.layer.shadowOpacity = 1.0//不透明度
contenVieww.layer.shadowRadius = 6//设置阴影所照射的范围
contenVieww.layer.shadowOffset = CGSize.zero// 设置阴影的偏移量
//后设置圆角
contenVieww.layer.cornerRadius = 5