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/Storage/ServerConfig/QNServerConfigCache.m

@@ -0,0 +1,65 @@
+//
+//  QNServerConfigCache.m
+//  QiniuSDK
+//
+//  Created by yangsen on 2021/8/30.
+//  Copyright © 2021 Qiniu. All rights reserved.
+//
+
+#import "QNServerConfigCache.h"
+#import "QNUtils.h"
+#import "QNCache.h"
+
+#define kQNServerConfigDiskKey @"config"
+#define kQNServerUserConfigDiskKey @"userConfig"
+
+@interface QNServerConfigCache(){
+    QNServerConfig *_config;
+    QNServerUserConfig *_userConfig;
+}
+@property(nonatomic, strong) QNCache *configCache;
+@property(nonatomic, strong) QNCache *userConfigCache;
+@end
+@implementation QNServerConfigCache
+
+- (instancetype)init {
+    if (self = [super init]) {
+        QNCacheOption *option = [[QNCacheOption alloc] init];
+        option.version = @"v1.0.0";
+        self.configCache = [QNCache cache:[QNServerConfig class] option:option];
+        
+        option = [[QNCacheOption alloc] init];
+        option.version = @"v1.0.0";
+        self.userConfigCache = [QNCache cache:[QNServerUserConfig class] option:option];
+    }
+    return self;
+}
+
+//MARK: --- config
+- (QNServerConfig *)getConfigFromDisk {
+    return [self.configCache cacheForKey:kQNServerConfigDiskKey];
+}
+
+- (void)saveConfigToDisk:(QNServerConfig *)config {
+    [self.configCache cache:config forKey:kQNServerConfigDiskKey atomically:true];
+}
+
+//MARK: --- user config
+- (QNServerUserConfig *)getUserConfigFromDisk {
+    return [self.userConfigCache cacheForKey:kQNServerUserConfigDiskKey];
+}
+
+- (void)saveUserConfigToDisk:(QNServerUserConfig *)config {
+    [self.userConfigCache cache:config forKey:kQNServerUserConfigDiskKey atomically:true];
+}
+
+- (void)removeConfigCache {
+    @synchronized (self) {
+        [self.configCache clearMemoryCache];
+        [self.configCache clearDiskCache];
+        [self.userConfigCache clearMemoryCache];
+        [self.userConfigCache clearDiskCache];
+    }
+}
+
+@end