swift 随笔学习

lazy var scrollView: UIScrollView = {
let scrollView = UIScrollView()
scrollView.delegate = self
scrollView.showsVerticalScrollIndicator = false
scrollView.contentInsetAdjustmentBehavior = .never
return scrollView
}()

let carView: UIView = {
let carView = UIView(frame: CGRect(x: 0, y: 0, width: LUIKScreenWidth, height: carViewHeight))
carView.isHidden(true)
return carView
}()

Swift 基本语法03-"if let"和"guard let"
https://www.jianshu.com/p/e1fe08c5db1a