Highlight the key difference between Upcast and Downcast in ios Swift.
Highlight the key difference between Upcast and Downcast in ios Swift.
题目类型: 技术面试题
这是一道技术面试题，常见于澳洲IT公司面试中。
难度: easy
标签: interviewbit, swift, topic-specific, ios
参考答案摘要
The key difference between Upcast and Downcast in ios Swift is that upcasting from a derived to a base class can be verified at compile-time and will never fail to compile and Downcasts, on the other ...
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