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/Http/Dns/QNDnsCacheInfo.h

@@ -0,0 +1,41 @@
+//
+//  QNDnsCacheKey.h
+//  QnDNS
+//
+//  Created by yangsen on 2020/3/26.
+//  Copyright © 2020 com.qiniu. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface QNDnsCacheInfo : NSObject
+
+/// 缓存时间戳
+@property(nonatomic,  copy, readonly)NSString *currentTime;
+/// 缓存时本地IP
+@property(nonatomic,  copy, readonly)NSString *localIp;
+/// 缓存信息
+@property(nonatomic,  copy, readonly)NSDictionary *info;
+
+//MARK: -- 构造方法
+/// 根据json构造对象
+/// @param jsonData json数据
++ (instancetype)dnsCacheInfo:(NSData *)jsonData;
+
+/// 根据属性构造对象
+/// @param currentTime 缓存时间戳
+/// @param localIp 缓存时本地IP
+/// @param info 缓存信息
++ (instancetype)dnsCacheInfo:(NSString *)currentTime
+                     localIp:(NSString *)localIp
+                        info:(NSDictionary *)info;
+
+
+/// 转化Json数据
+- (NSData *)jsonData;
+
+@end
+
+NS_ASSUME_NONNULL_END