Swift 面试题与答案
Test your skills through the online practice test: Swift Quiz Online Practice Test
问题 11. How does Swift handle error handling?
Swift uses a combination of 'try', 'catch', 'throw', and 'do' keywords for error handling using the Swift Error protocol.
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问题 12. What is the 'guard' statement in Swift?
The 'guard' statement is used to transfer control out of a scope if certain conditions aren't met, ensuring that a set of requirements is satisfied.
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问题 13. What is the Swift Codable protocol used for?
The Codable protocol is used for encoding and decoding data between Swift types and external data formats, such as JSON or Property Lists.
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问题 14. Explain lazy loading in Swift.
Lazy loading is a technique in Swift where a property is not initialized until it's accessed for the first time.
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问题 15. What is the purpose of the 'init?' initializer in Swift?
The 'init?' initializer is a failable initializer, which means it can return nil if the initialization fails.
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