返回在两个文件比较后添加或删除的记录

我正在比较两个文件，其中一个文件可能添加或删除了项目。我正在检查这两个文件之间是否有差异，如果有，那么无论添加还是删除了记录，这些差异是什么。我想退回那些记录（添加或删除）

根据我所拥有的内容，它告诉我文件是否已删除或添加项目，但它不会返回已添加或删除的项目。对我所缺少的任何帮助都将不胜感激。

   foreach (ExcelRow rowA in fileA.excelRows)
    {
        if (!fileB.ContainsHash(rowA.rowHash))
        {
            MessageBox.Show("Files are NOT the same. Data was REMOVED.'n" + rowA.ToString());
        }
    }
    foreach (ExcelRow rowB in fileB.excelRows)
    {
         if (!fileA.ContainsHash(rowB.rowHash))
         {
              MessageBox.Show("Row added" + rowB.ToString());
         }
    }
public List<ExcelRow> excelRows = new List<ExcelRow>();
        public bool ContainsHash(byte[] hashToLook)
        {
            bool found;
            found = false;
            foreach (ExcelRow eRow in excelRows)
            {
                found = EqualHash(eRow.rowHash, hashToLook);
                if (found)
                {
                    break;
                }
            }
            return found;
        }
        public static bool EqualHash(byte[] hashA, byte[] hashB)
        {
            bool bEqual ;
            int i ;
            bEqual  = false;
            if (hashA.Length == hashB.Length)
            {
                i = 0;
                while ((i < hashA.Length) && (hashA[i] == hashB[i]))
                {
                    i++ ;
                }
                if (i == hashA.Length)
                {
                    bEqual = true;
                }
            }
            return bEqual ;
        }

读取文件：

public ExcelInfo ReadExcel(OpenFileDialog openFileDialog)
        {
            var _excelFile = new ExcelQueryFactory(openFileDialog.FileName);
            var _info = from c in _excelFile.WorksheetNoHeader() select c;
            ExcelRow excelRow;
            ExcelInfo resp;
            resp = new ExcelInfo();
            foreach (var item in _info)
            {
                excelRow = new ExcelRow();
                excelRow.lstCells.Add(item.ElementAt(0));
                excelRow.lstCells.Add(item.ElementAt(1));
                excelRow.lstCells.Add(item.ElementAt(2));
                excelRow.lstCells.Add(item.ElementAt(3));
                excelRow.lstCells.Add(item.ElementAt(4));
                excelRow.lstCells.Add(item.ElementAt(5));
                excelRow.lstCells.Add(item.ElementAt(6));
                excelRow.lstCells.Add(item.ElementAt(7));
                excelRow.lstCells.Add(item.ElementAt(8));
                excelRow.lstCells.Add(item.ElementAt(9));
                excelRow.lstCells.Add(item.ElementAt(10));
                excelRow.lstCells.Add(item.ElementAt(11));
                excelRow.lstCells.Add(item.ElementAt(12));
                excelRow.CalculateHash();
                resp.excelRows.Add(excelRow);
            }
            return resp;
        }

计算哈希：

public void CalculateHash()
        {
            byte[] rowBytes;
            byte[] cellBytes;
            int pos;
            int numRowBytes;
            numRowBytes = 0;
            foreach (string cellText in lstCells)
            {
                numRowBytes += NumBytes(cellText);
            }
            //Allocate space to calculate the HASH of a single row
            rowBytes = new byte[numRowBytes];
            pos = 0;
            //Concatenate the cellText of each row into a single byte array
            foreach (string cellText in lstCells)
            {
                cellBytes = GetBytes(cellText);
                System.Buffer.BlockCopy(cellBytes, 0, rowBytes, pos, cellBytes.Length);
                pos = cellBytes.Length;
            }
            rowHash = new MD5CryptoServiceProvider().ComputeHash(rowBytes);
        }

调试时：

if (!fileB.ContainsHash(rowA.rowHash))

文件B包含三行，文件A包含四行。

fileB＝3，rowA=文件A中的第一行，（.rowHash）是byte[16]

当我继续使用ContainHash方法时，byte[]hashToLook=16-这不应该是rowA吗？

excelRows=3（fileB）

那么EqualHash（eRow.rowHash，hashToLook）是（文件A中的第一行，byte[16]）

我是从A排路过吗？

var notInA = new List<ExcelRow>();
var notInB = new List<ExcelRow>();

foreach (ExcelRow rowA in fileA.excelRows)
{
    if (!fileB.ContainsHash(rowA.rowHash))
    {
        MessageBox.Show("Files are NOT the same. Data was REMOVED.'n" + rowA.ToString());
        notInB.Add(rowA);
    }
}
foreach (ExcelRow rowB in fileB.excelRows)
{
     if (!fileA.ContainsHash(rowB.rowHash))
     {
          MessageBox.Show("Row added" + rowB.ToString());
          notInA.Add(rowB);
     }
}