对比分析Objective_C和Swift懒加载的区别

1.总结swift定义懒加载的规则，即"后面通过等号赋值一个闭包，闭包后面必须加上()"，看下面实例

//UIImageView的懒加载
lazy var hImage:UIImageView  = {
       () -> UIImageView in
        let tem = UIImageView.init(image: UIImage.init(named: "icon2.jpeg"))
        return tem
    }()

对比分析Objective_C和Swift懒加载的区别https://blog.csdn.net/feng2qing/article/details/54024674

Swift - 懒加载的实现https://www.jianshu.com/p/af0702a91e92

Swift 4.0学习之：懒加载https://blog.csdn.net/qq_35612929/article/details/79551332