https://blog.youkuaiyun.com/Akrieszh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/Akries/article/details/52369687https://blog.youkuaiyun.com/Akries/article/details/52369687AkriesTue, 30 Aug 2016 15:26:02 +0800https://blog.youkuaiyun.com/Akries/article/details/50344993https://blog.youkuaiyun.com/Akries/article/details/50344993AkriesThu, 17 Dec 2015 17:51:58 +0800https://blog.youkuaiyun.com/Akries/article/details/48240021https://blog.youkuaiyun.com/Akries/article/details/48240021AkriesSun, 06 Sep 2015 09:40:02 +0800https://blog.youkuaiyun.com/Akries/article/details/47067561https://blog.youkuaiyun.com/Akries/article/details/47067561AkriesSun, 26 Jul 2015 13:53:44 +0800https://blog.youkuaiyun.com/Akries/article/details/46861225https://blog.youkuaiyun.com/Akries/article/details/46861225AkriesMon, 13 Jul 2015 13:04:09 +0800 NSString 　　NSString *aString = [[NSString alloc] initWithData:adata encoding:NSUTF8StringEncoding]; 　　NSString –> NSData 　　NSString *aString = @”1234”; 　　NSData *aD]]>https://blog.youkuaiyun.com/Akries/article/details/46795791https://blog.youkuaiyun.com/Akries/article/details/46795791AkriesTue, 07 Jul 2015 23:12:18 +0800https://blog.youkuaiyun.com/Akries/article/details/46741613https://blog.youkuaiyun.com/Akries/article/details/46741613AkriesFri, 03 Jul 2015 14:51:57 +0800https://blog.youkuaiyun.com/Akries/article/details/46344007https://blog.youkuaiyun.com/Akries/article/details/46344007AkriesWed, 03 Jun 2015 13:20:11 +0800https://blog.youkuaiyun.com/Akries/article/details/45969177https://blog.youkuaiyun.com/Akries/article/details/45969177AkriesMon, 25 May 2015 14:17:17 +0800https://blog.youkuaiyun.com/Akries/article/details/45666771https://blog.youkuaiyun.com/Akries/article/details/45666771AkriesTue, 12 May 2015 10:58:35 +0800https://blog.youkuaiyun.com/Akries/article/details/45641311https://blog.youkuaiyun.com/Akries/article/details/45641311AkriesMon, 11 May 2015 10:35:49 +0800.结构化数据 如 : 检索和查询 是有index的 会重复操作 DB 2>.非结构化存储 如 : 对象存储DB: 1>.用户信息 2>.文档信息 创建修改 源信息 3>.目录对象数据 1>.二进制数据流 其中存储的比较—— 请求延迟Disk 内存———————-10纳秒 磁盘———————- 5 - 10毫秒 cpu———————— <1纳秒数据]]>https://blog.youkuaiyun.com/Akries/article/details/45508255https://blog.youkuaiyun.com/Akries/article/details/45508255AkriesTue, 05 May 2015 21:03:51 +0800https://blog.youkuaiyun.com/Akries/article/details/45365511https://blog.youkuaiyun.com/Akries/article/details/45365511AkriesWed, 29 Apr 2015 13:41:46 +0800https://blog.youkuaiyun.com/Akries/article/details/45171197https://blog.youkuaiyun.com/Akries/article/details/45171197AkriesTue, 21 Apr 2015 15:36:58 +0800https://blog.youkuaiyun.com/Akries/article/details/45026251https://blog.youkuaiyun.com/Akries/article/details/45026251AkriesMon, 13 Apr 2015 15:21:44 +0800https://blog.youkuaiyun.com/Akries/article/details/45023481https://blog.youkuaiyun.com/Akries/article/details/45023481AkriesMon, 13 Apr 2015 11:26:13 +0800

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