增加Shuffle方法

Jx.Toolbox/Extensions/ListExtension.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+
+namespace Jx.Toolbox.Extensions
+{
+    public static class ListExtension
+    {
+        /// <summary>
+        /// 简易洗牌算法，支持IList
+        /// </summary>
+        /// <param name="list"></param>
+        /// <typeparam name="T"></typeparam>
+        public static void Shuffle<T>(this IList<T> list)
+        {
+            var rng = new Random();
+            int n = list.Count;
+            while (n > 1)
+            {
+                n--;
+                int k = rng.Next(n + 1);
+                (list[k], list[n]) = (list[n], list[k]);
+            }
+        }
+    }
+}

Jx.Toolbox/Jx.Toolbox.csproj

@@ -9,7 +9,7 @@
         <PackageProjectUrl>https://github.com/j4587698/Jx.Toolbox</PackageProjectUrl>
         <PackageLicenseExpression>MIT</PackageLicenseExpression>
         <PackageTags>tool</PackageTags>
-        <PackageVersion>0.3.11</PackageVersion>
+        <PackageVersion>0.3.12</PackageVersion>
     </PropertyGroup>
 
 </Project>

README.md

@@ -115,6 +115,12 @@ ByteArrayExtension
 ```
 byte[].ToHexString(); // 将byte数组转换为16进制字符串
 ```
+
+ListExtension
+```
+IList.Shuffle(); //对指定的IList进行洗牌
+```
+
 ## Hash库
 ```
 MD5.MD5String("要计算得字符串"); // 获取32位小写的MD5串