init commit all code

Test/Getf.Service.Transfer.Request.SDK/Helpers/Md5Helper.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Security.Cryptography;
+using System.Text;
+
+namespace Getf.Service.Transfer.Request.SDK.Helpers
+{
+	public static class Md5Helper
+	{
+		public static string Md5(string str)
+		{
+			MD5 md5 = MD5.Create();
+			byte[] data = Encoding.UTF8.GetBytes(str);
+			data = md5.ComputeHash(data);
+
+			StringBuilder sb = new StringBuilder();
+			for (int i = 0; i < data.Length; i++)
+			{
+				sb.Append(data[i].ToString("x2"));
+			}
+			return sb.ToString();
+		}
+	}
+}