根据修改次数获取内容文件

我必须在所有内容更改后寻求文件之间的差异，因此我如何才能读取和获取内容，而它们具有相同的路径和目录我必须使用它来实现一个实用程序，从代码

生成统计信息

    IList<FileSpec> filesToFind = new List<FileSpec>();
filesToFind.Add( new FileSpec(FileSpec.DepotSpec(dpath).DepotPath, Revision.None));
string[] files = new string[1];
files[0] = dpath;
P4Command command = new P4Command(ps, "where", true, files);
Options opts = new Options();
string v1="", v2="", v3="";  
P4CommandResult results = command.Run(opts);
TaggedObjectList list = (results.TaggedOutput);
foreach (TaggedObject obj in list)
{
    Console.Out.WriteLine("v1=" + v1 + "hhhhhhhhh1");
    int i = 0; string v="";
    foreach (String s in obj.Keys)
    {
        String value = "n/a";
        obj.TryGetValue(s, out value);
        if (obj.Keys.ElementAt(i).Equals("depotFile"))
            v1 = value;
        if (obj.Keys.ElementAt(i).Equals("clientFile"))
            v2 = value;
        if (obj.Keys.ElementAt(i).Equals("path"))
            v3 = value;
        Console.Out.WriteLine(s + " = " + value);
        i++;
    }
    String path = v3;
    if (path==null)
    {
        Console.WriteLine("Can't' find file, {0}", path);
    }
    else
    {
        string extension = Path.GetExtension(path);
        if (extension!=null && !("".Equals(extension)))
        {
            Console.WriteLine("Processing solution file, {0}", path);
            FileInfo fi = new FileInfo(path);
            using (StreamReader sr = new StreamReader(path, true))
            {
                Encoding encode = sr.CurrentEncoding;
                string line = null;
                while ((line = sr.ReadLine()) != null)
                {
                    while (((line = sr.ReadLine()) != null) && (line.Contains("EndGlobalSection") == false))
                    {
                        Console.WriteLine(line);
                    }
                }
            }
        }
    }
}

那么文件之间的区别是什么呢例如当一个文件被修改了六次

 GetFileAnnotationsCmdOptions gfacmo = new GetFileAnnotationsCmdOptions(GetFileAnnotationsCmdFlags.AllResults, k);