判断二个文件是否相同

判断二个文件是否相同，通过判断文件的哈希值是否一致。

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var hash = System.Security.Cryptography.HashAlgorithm.Create(); string fileName = "Z:\\Tools\\Common\\winx64_12102_database_1of2.zip"; var fileStream = System.IO.File.Open(fileName, System.IO.FileMode.Open); var bytes1 = hash.ComputeHash(fileStream); fileStream.Close();   fileName = "Z:\\Tools\\Common\\winx64_12102_database_1of2.zip"; fileStream = System.IO.File.Open(fileName, System.IO.FileMode.Open); var bytes2 = hash.ComputeHash(fileStream); fileStream.Close();   if (BitConverter.ToString(bytes1) == BitConverter.ToString(bytes2)) {     Response.Write("相同文件"); } else {     Response.Write("不同文件"); }