Type Casting Sample Code And Issues

前端之家收集整理的这篇文章主要介绍了Type Casting Sample Code And Issues前端之家小编觉得挺不错的,现在分享给大家,也给大家做个参考。
Type Casting Sample Code
https://github.com/xiruanliuwei/SwiftCodes/commit/ae24daedea3b4e695749c00acbe71e8b24dc518d

1. "as?" returns "optional form"
2. What is optional binding?

猜你在找的Swift相关文章