\u7279\u5b9a\u306e\u30d5\u30a9\u30eb\u30c0\u4ee5\u4e0b\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u30cf\u30c3\u30b7\u30e5\u3067\u6bd4\u8f03\u3057\u3066\u307f\u308b\u3002\u904e\u53bb\u306b\u4f55\u5ea6\u304b\u30d5\u30a1\u30a4\u30eb\u7834\u640d\u3057\u305f\u3053\u3068\u304c\u3042\u3063\u305f\u306e\u3067\u5b9f\u9a13\u3002<\/p>\n
using System;\r\nusing System.Linq;\r\nusing System.IO;\r\n\r\nnamespace ConsoleApp1\r\n{\r\n class Program\r\n {\r\n static void Main(string[] args)\r\n {\r\n string srcBasePath = @\"C:\\Users\\xxx\\Desktop\\1\";\r\n string dstBasePath = @\"C:\\Users\\xxx\\Desktop\\2\";\r\n\r\n foreach(var p in Directory.EnumerateFiles(srcBasePath, \"*\", SearchOption.AllDirectories))\r\n {\r\n \/\/ \u9664\u5916\u3059\u308b\u62e1\u5f35\u5b50\u3068\u30d5\u30a1\u30a4\u30eb\u540d\r\n\r\n if (Path.GetExtension(p) == \".db\") continue;\r\n if (Path.GetFileName (p) == \"desktop.ini\") continue;\r\n\r\n string srcHash = FileHash(p);\r\n string dstHash = FileHash(p.Replace(srcBasePath, dstBasePath));\r\n\r\n if (srcHash == dstHash)\r\n {\r\n \/\/ \u30cf\u30c3\u30b7\u30e5\u304c\u4e00\u81f4\u3057\u305f\u5834\u5408\u3002\r\n }\r\n else if (srcHash != dstHash)\r\n {\r\n \/\/ \u30cf\u30c3\u30b7\u30e5\u304c\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u3002\r\n\r\n Console.WriteLine(p.Replace(srcBasePath, dstBasePath));\r\n Console.WriteLine(dstHash);\r\n }\r\n }\r\n Console.WriteLine(\"\u7d9a\u884c\u3059\u308b\u306b\u306f\u4f55\u304b\u30ad\u30fc\u3092\u62bc\u3057\u3066\u304f\u3060\u3055\u3044\uff0e\uff0e\uff0e\");\r\n Console.ReadKey();\r\n }\r\n\r\n private static string FileHash(string path)\r\n {\r\n \/\/ \u5148\u982d\u304b\u3089\u6307\u5b9a\u30d0\u30a4\u30c8\u5206\u3067\u30cf\u30c3\u30b7\u30e5\u3092\u51fa\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u6307\u5b9a\u4ee5\u964d\u306e\u4e0d\u4e00\u81f4\u3067\u306f\u30a8\u30e9\u30fc\u306b\u306a\u3089\u306a\u3044\r\n\r\n try\r\n {\r\n using (var fs = new FileStream(path, FileMode.Open, FileAccess.Read))\r\n {\r\n var b = new byte[1024 * 1024]; \/\/ 1MB\r\n fs.Read(b, 0, 1024 * 1024);\r\n using (var ms = new MemoryStream(b))\r\n {\r\n var hashProvider = new System.Security.Cryptography.SHA256CryptoServiceProvider();\r\n var bs = hashProvider.ComputeHash(ms);\r\n return String.Join(\"\", bs.Select(x => x.ToString(\"x2\")).ToArray()); \/\/ BitConverter\u3068\u7d50\u679c\u306f\u540c\u3058\u3067\u9055\u3046\u66f8\u304d\u65b9\r\n }\r\n }\r\n }\r\n catch (Exception)\r\n {\r\n return \"\";\r\n }\r\n\r\n }\r\n\r\n private static string FileHash2(string path)\r\n {\r\n \/\/ \u30d5\u30a1\u30a4\u30eb\u5168\u3066\u3092\u5229\u7528\u3059\u308b\u305f\u3081\u3001\u30b5\u30a4\u30ba\u304c\u5927\u304d\u3044\u3068\u6642\u9593\u304c\u304b\u304b\u308b\u3002\r\n\r\n try\r\n {\r\n using (var fs = new FileStream(path, FileMode.Open, FileAccess.Read))\r\n {\r\n var hashProvider = new System.Security.Cryptography.SHA256CryptoServiceProvider();\r\n var bs = hashProvider.ComputeHash(fs);\r\n\r\n return BitConverter.ToString(bs).ToLower().Replace(\"-\", \"\");\r\n }\r\n }\r\n catch(Exception e)\r\n {\r\n return e.Message;\r\n }\r\n }\r\n }\r\n}\r\n<\/pre>\n <\/p>\n","protected":false},"excerpt":{"rendered":"
\u7279\u5b9a\u306e\u30d5\u30a9\u30eb\u30c0\u4ee5\u4e0b\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u30cf\u30c3\u30b7\u30e5\u3067\u6bd4\u8f03\u3057\u3066\u307f\u308b\u3002\u904e\u53bb\u306b\u4f55\u5ea6\u304b\u30d5\u30a1\u30a4\u30eb\u7834\u640d\u3057\u305f\u3053\u3068\u304c\u3042\u3063\u305f\u306e\u3067\u5b9f\u9a13\u3002 using System; using System.Linq; using System.IO; namespa … <\/p>\n