添加项目文件。

HT.Cloud.Code/Extend/Ext.Number.cs

@@ -0,0 +1,96 @@
+
+using System;
+using System.Text;
+using System.Collections.Generic;
+using System.Security.Cryptography;
+
+namespace HT.Cloud.Code
+{
+	/// <summary>
+	/// 数值扩展类
+	/// </summary>
+	public static partial class Extensions
+	{
+        #region 进制转换
+        /// <summary>
+        /// 10进制转换到2-36进制
+        /// </summary>
+        /// <param name="this">10进制数字</param>
+        /// <param name="radix">进制，范围2-36</param>
+        /// <param name="digits">编码取值规则，最大转换位数不能大于该字符串的长度</param>
+        /// <returns></returns>
+        public static string ToBase(this long @this, int radix, string digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ")
+        {
+            const int BitsInLong = 64;
+
+            if (radix < 2 || radix > digits.Length)
+                throw new ArgumentException("The radix must be >= 2 and <= " + digits.Length.ToString());
+
+            if (@this == 0)
+                return "0";
+
+            var index = BitsInLong - 1;
+            var currentNumber = Math.Abs(@this);
+            var charArray = new char[BitsInLong];
+
+            while (currentNumber != 0)
+            {
+                var remainder = (int)(currentNumber % radix);
+                charArray[index--] = digits[remainder];
+                currentNumber /= radix;
+            }
+
+            var result = new string(charArray, index + 1, BitsInLong - index - 1);
+            if (@this < 0)
+            {
+                result = "-" + result;
+            }
+
+            return result;
+        }
+
+        /// <summary>
+        /// byte转16进制
+        /// </summary>
+        /// <param name="this"></param>
+        /// <returns></returns>
+        public static string ToHex(this byte @this) => Convert.ToString(@this, 16);
+
+        /// <summary>
+        /// 2进制转16进制
+        /// </summary>
+        /// <param name="this"></param>
+        /// <returns></returns>
+        public static string ToHex(this string @this) => Convert.ToString(Convert.ToInt64(@this, 2), 16);
+
+        /// <summary>
+        /// 16进制转2进制
+        /// </summary>
+        /// <param name="this"></param>
+        /// <returns></returns>
+        public static string ToBinary(this string @this) => Convert.ToString(Convert.ToInt64(@this, 16), 2);
+
+        /// <summary>
+        /// 2进制/16进制转8进制
+        /// </summary>
+        /// <param name="this"></param>
+        /// <param name="fromBase">2或者16，表示2进制或者16进制；</param>
+        /// <returns></returns>
+        public static string ToOctal(this string @this, int fromBase) => Convert.ToString(Convert.ToInt64(@this, fromBase), 8);
+
+        /// <summary>
+        /// 2进制/16进制转10进制
+        /// </summary>
+        /// <param name="this"></param>
+        /// <param name="fromBase">2或者16，表示2进制或者16进制；</param>
+        /// <returns></returns>
+        public static string ToDecimalism(this string @this, int fromBase)
+        {
+            if (fromBase == 16)
+                return Convert.ToInt32(@this, 16).ToString();
+            else
+                return Convert.ToString(Convert.ToInt64(@this, 2), 10);
+        }
+        #endregion
+    }
+}