优化更新代码，添加界面功能并整合

ShrlAlgo.Toolkit.Core/Heplers/IOHelper.cs

@@ -0,0 +1,108 @@
+using System.Diagnostics;
+using System.IO;
+using System.Text;
+
+namespace ShrlAlgo.Toolkit.Core.Heplers;
+
+public static class IOHelper
+{
+    public static void GetFilesHierarchy(string path)
+    {
+        var files = Directory.GetFiles($"{path}", "*", SearchOption.AllDirectories); //遍历所有文件夹
+        var list = files.Union(files).OrderBy(s => s);
+    }
+
+    public static string GetRelativePath(string fromPath, string toPath)
+    {
+        Uri uri = new(fromPath);
+        Uri uri2 = new(toPath);
+        if (uri.Scheme != uri2.Scheme)
+        {
+            return toPath;
+        }
+
+        var uri3 = uri.MakeRelativeUri(uri2);
+        var text = Uri.UnescapeDataString(uri3.ToString());
+        if (uri2.Scheme.Equals("file", StringComparison.InvariantCultureIgnoreCase))
+        {
+            text = text.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar);
+        }
+
+        return text;
+    }
+
+    /// <summary>
+    /// 获取指定系统路径
+    /// </summary>
+    /// <param name="specialFolder"></param>
+    /// <returns></returns>
+    public static string GetSpecialFolderDir(Environment.SpecialFolder specialFolder)
+    {
+        return Environment.GetFolderPath(specialFolder);
+    }
+
+    /// <summary>
+    ///     读文件
+    /// </summary>
+    /// <param name="path">文件路径</param>
+    /// <returns></returns>
+    public static string ReadFile(string path)
+    {
+        string s;
+        if (!File.Exists(path))
+        {
+            s = "不存在相应的目录";
+        }
+        else
+        {
+            using StreamReader f2 = new(path, Encoding.GetEncoding("gb2312"));
+            s = f2.ReadToEnd();
+            f2.Close();
+        }
+
+        return s;
+    }
+
+    /// <summary>
+    /// 在桌面写文件
+    /// </summary>
+    /// <param name="fileName">纯文件名</param>
+    /// <param name="message">写入的内容</param>
+    public static void WriteTxtFile(string fileName, string message)
+    {
+        var filePath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + $"\\{fileName}.txt";
+        File.WriteAllText(filePath, message);
+        Process.Start(filePath);
+    }
+
+    /// <summary>
+    ///     写文件
+    /// </summary>
+    /// <param name="path">文件路径</param>
+    /// <param name="strings">文件内容</param>
+    public static void WriteFile(string path, string strings)
+    {
+        if (!File.Exists(path))
+        {
+            var f = File.Create(path);
+            f.Close();
+            f.Dispose();
+        }
+
+        using StreamWriter f2 = new(path, true, Encoding.UTF8);
+        f2.WriteLine(strings);
+        f2.Close();
+    }
+
+    /// <summary>
+    ///     向文本文件中写入内容
+    /// </summary>
+    /// <param name="filePath">文件的绝对路径</param>
+    /// <param name="text">写入的内容</param>
+    /// <param name="encoding">编码</param>
+    public static void WriteText(string filePath, string text, Encoding encoding)
+    {
+        //向文件写入内容
+        File.WriteAllText(filePath, text, encoding);
+    }
+}