关于存储，SwiftUI View的生命周期是如何工作的？
我理解使用@State、@StateObject、@ObservedObject、@Binding，甚至简单的let/var的含义
但不包括存储生命周期的工作方式以及与上述变量的关联方式
What gives a View it's identity and how does the system knows, when new View instances must be created and when they are only reassigned to this particular created View struct个
我发现这是理解的关键，到底发生了什么