From f38dd4e1948c1c93fb4a0b6dc1ca96e3e582db2c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=97=B7=E4=B8=BD=E6=96=87?= <kuangliwen1@live.com>
Date: Mon, 22 Mar 2021 14:25:30 +0800
Subject: [PATCH] =?UTF-8?q?=E6=96=B0=E5=A2=9EZRANDMEMBER=E6=96=B9=E6=B3=95?=
MIME-Version: 1.0
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---
 src/FreeRedis/FreeRedis.xml             | 20 ++++++++++++++++++++
 src/FreeRedis/RedisClient/SortedSets.cs | 23 +++++++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/src/FreeRedis/FreeRedis.xml b/src/FreeRedis/FreeRedis.xml
index c27b3f42..b4c16619 100644
--- a/src/FreeRedis/FreeRedis.xml
+++ b/src/FreeRedis/FreeRedis.xml
@@ -1109,6 +1109,26 @@
             </summary>
             <returns>成功/失败</returns>
         </member>
+        <member name="M:FreeRedis.RedisClient.ZRandMember(System.String,System.Int32,System.Boolean)">
+            <summary>
+            随机返回N个元素
+            <para>Redis 6.2.0+以上才支持该命令</para>
+            </summary>
+            <param name="key">Key</param>
+            <param name="count">返回的个数</param>
+            <param name="repetition">是否允许有重复元素返回</param>
+            <returns></returns>
+        </member>
+        <member name="M:FreeRedis.RedisClient.ZRandMemberWithScores(System.String,System.Int32,System.Boolean)">
+            <summary>
+            随机返回N个元素, 包含分数
+            <para>Redis 6.2.0+以上才支持该命令</para>
+            </summary>
+            <param name="key">Key</param>
+            <param name="count">返回的个数</param>
+            <param name="repetition">是否允许有重复元素返回</param>
+            <returns></returns>
+        </member>
         <member name="M:FreeRedis.RedisClient.Append``1(System.String,``0)">
             <summary>
             APPEND command (A Synchronized Version)<br /><br />
diff --git a/src/FreeRedis/RedisClient/SortedSets.cs b/src/FreeRedis/RedisClient/SortedSets.cs
index 87b4fe5e..261ce749 100644
--- a/src/FreeRedis/RedisClient/SortedSets.cs
+++ b/src/FreeRedis/RedisClient/SortedSets.cs
@@ -268,6 +268,29 @@ long ZStore(bool inter, string destination, string[] keys, int[] weights, ZAggre
             .InputIf(weights?.Any() == true, weights)
             .InputIf(aggregate != null, "AGGREGATE", aggregate ?? ZAggregate.max), rt => rt
             .ThrowOrValue<long>());
+
+        /// <summary>
+        /// 随机返回N个元素
+        /// <para>Redis 6.2.0+以上才支持该命令</para>
+        /// </summary>
+        /// <param name="key">Key</param>
+        /// <param name="count">返回的个数</param>
+        /// <param name="repetition">是否允许有重复元素返回</param>
+        /// <returns></returns>
+        public string[] ZRandMember(string key, int count, bool repetition) => Call("ZRANDMEMBER".InputKey(key, repetition ? -count : count), rt => rt.ThrowOrValue<string[]>());
+
+        /// <summary>
+        /// 随机返回N个元素, 包含分数
+        /// <para>Redis 6.2.0+以上才支持该命令</para>
+        /// </summary>
+        /// <param name="key">Key</param>
+        /// <param name="count">返回的个数</param>
+        /// <param name="repetition">是否允许有重复元素返回</param>
+        /// <returns></returns>
+        public ZMember[] ZRandMemberWithScores(string key, int count, bool repetition) => Call("ZRANDMEMBER"
+            .InputKey(key, repetition ? -count : count)
+            .Input("WITHSCORES"), rt => rt
+            .ThrowOrValue((a, _) => a == null || a.Length == 0 ? new ZMember[0] : a.MapToHash<decimal>(rt.Encoding).Select(b => new ZMember(b.Key, b.Value)).ToArray()));
     }
 
     public class ZMember