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.m

@@ -0,0 +1,28 @@
+//
+//  QNAsyncRun.m
+//  QiniuSDK
+//
+//  Created by bailong on 14/10/17.
+//  Copyright (c) 2014年 Qiniu. All rights reserved.
+//
+
+#import "QNAsyncRun.h"
+#import <Foundation/Foundation.h>
+
+void QNAsyncRun(QNRun run) {
+    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^(void) {
+        run();
+    });
+}
+
+void QNAsyncRunInMain(QNRun run) {
+    dispatch_async(dispatch_get_main_queue(), ^(void) {
+        run();
+    });
+}
+
+void QNAsyncRunAfter(NSTimeInterval time, dispatch_queue_t queue, QNRun run) {
+    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(time * NSEC_PER_SEC)), queue, ^{
+        run();
+    });
+}