C# 判断文件内容是否相同

需要用到的类HashAlgorithm

using System.IO;
using System.Security.Cryptography;

using (HashAlgorithm hash = HashAlgorithm.Create())
            {
                using (FileStream file1 = new FileStream(filePath1, FileMode.Open), file2 = new FileStream(filePath2, FileMode.Open))
                {
                    byte[] hashByte1 = hash.ComputeHash(file1);//计算指定Stream的哈希值
                    byte[] hashByte2 = hash.ComputeHash(file2);
                    string str1 = BitConverter.ToString(hashByte1);//将字节数组装换为字符串
                    string str2 = BitConverter.ToString(hashByte2);
                    if (str1 == str2)
                    {
                        Console.WriteLine("相同");
                    }
                    else
                    {
                        Console.WriteLine("不同");
                    }
                }