解决了语音上传到问题，接下来要解决下载播放问题

Pods/HappyDNS/HappyDNS/Util/QNDes.h

@@ -0,0 +1,22 @@
+//
+//  QNDes.h
+//  HappyDNS
+//
+//  Created by bailong on 15/8/1.
+//  Copyright (c) 2015年 Qiniu Cloud Storage. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+extern const int kQN_ENCRYPT_FAILED;
+extern const int kQN_DECRYPT_FAILED;
+
+@interface QNDes : NSObject
+
+- (NSData *)encrypt:(NSData *)input;
+
+- (NSData *)decrpyt:(NSData *)input;
+
+- (instancetype)init:(NSData *)key;
+
+@end