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ios - How do I test if a string is empty in Objective C? - Stack Overflow
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日期：2025-04-23
How do I test if an NSString is empty in Objective C? ... If you are in a situation where you don't know what type of object you are checking, I guess this works. However I suggest that if you don't know whether an object is NSData or NSArray, you have bi...看更多
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