我假设我需要将我的对象强制转换为NSString,但是当我尝试这样做时,我得到了一个错误。代码运行并给出了预期的输出,但是这个警告让我很困扰。NSLog(@"lowerCaseString is: %@", [object lowercaseString]);NSLog(@"lowerCaseString is: %@", [(NSString)object lower
如何将(NSObject, AnyObject)类型的对象转换为String类型'(NSObject, AnyObject)' is notconvertible to 'String'
将street强制转换为NSString而不是String编译,但我将street强制转换为String,因为我想将其与placemark.nam
setValue(nil, forKeyPath: info[NSObservedKeyPathKey])现在我得到了错误'NSString' is not convertibleto 'DictionaryIndex<NSObject, AnyObject>'。setValue(MyValue forKeyPath: (info[NSObservedKeyPathKey] as NSString))