一句话：
YourSwiftObject convertedArray = your_MutableArray as NSArray as [YourSwiftObject]
SwiftObject convertedArray = your_MutableArray as NSArray as [YourSwiftObject]
SwiftObject
iOS: 将OC的NSMutableArray转为Swift的Array
原文：http://www.cnblogs.com/ilovewindy/p/4045417.html
