Swift 面试题与答案
问题 16. What is the 'async/await' pattern in Swift?
The 'async/await' pattern is used for asynchronous programming in Swift, allowing you to write asynchronous code in a more sequential manner.
问题 17. Explain the concept of protocol-oriented programming in Swift.
Protocol-oriented programming is a programming paradigm in Swift that emphasizes the use of protocols to define the structure and behavior of types.
问题 18. What is the purpose of the '@escaping' keyword in Swift?
The '@escaping' keyword is used in Swift to indicate that a closure passed as a parameter to a function may be stored beyond the lifetime of that function.
问题 19. What is the purpose of the 'defer' statement in Swift?
The 'defer' statement is used to execute a block of code just before the current scope is exited, regardless of how the scope is exited.
问题 20. Explain the difference between synchronous and asynchronous tasks in Swift.
Synchronous tasks block the current thread until they are completed, while asynchronous tasks allow the program to continue executing other tasks without waiting.
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