I'm getting an error message "Unexpectedly found nil while unwrapping an Optional" from Swift, with the below class. The error occurs on ...stackoverflow.com/ques... - 百度快照 - 翻译此页
最佳答案: unexpectedly found nil while unwrapping an optional value 在打开一个可选值时意外地发现了零 unexpectedly found nil while unwrapping an optional value...更多关于unexpectedly found nil while unwrapping an Optional value的问题>>