[资源介绍]
GitHub - psharanda/FixFlex: Declarative Auto Layout code that is easy to write, read, and modify
Declarative Auto Layout code that is easy to write, read, and modify - psharanda/FixFlex
* FixFlex - 基于 NSLayoutAnchor 的声明式自动布局，VFL 的 Swift 重构，是 UIStackView 的替代方案。
