解决了语音上传到问题，接下来要解决下载播放问题

Pods/Qiniu/QiniuSDK/Utils/QNAsyncRun.h

@@ -0,0 +1,20 @@
+//
+//  QNAsyncRun.h
+//  QiniuSDK
+//
+//  Created by bailong on 14/10/17.
+//  Copyright (c) 2014年 Qiniu. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+#define kQNBackgroundQueue dispatch_get_global_queue(0, 0)
+#define kQNMainQueue dispatch_get_main_queue()
+
+typedef void (^QNRun)(void);
+
+void QNAsyncRun(QNRun run);
+
+void QNAsyncRunInMain(QNRun run);
+
+void QNAsyncRunAfter(NSTimeInterval time, dispatch_queue_t queue, QNRun run);