在Swift中投放/转换字典

Question

How can I convert an [NSObject : AnyObject] -> [NSString: CKRecordValue] in Swift?

personEdited!.changedValues() as [(NSString, CKRecordValue)]

personEdit in a NSManagedObject .

Answer 1

您正在尝试转换字典（ [NSObject : AnyObject] ）而不是元组数组[(NSString, CKRecordValue)] ），请尝试以下操作：

personEdited!.changedValues() as [NSString: CKRecordValue]

Answer 2

You can convert the key/values of the dictionary into an array containing tuples like so:

var dict = [ "1" : 1, "2" : 2, "3" : 3 ]
var array = Array(Zip2(dict.keys, dict.values))

array now has the type [ (String, Int) ] .