diff --git a/s-day04/src/com/inmind/map01/Poker.java b/s-day04/src/com/inmind/map01/Poker.java
new file mode 100644
index 0000000..5855975
--- /dev/null
+++ b/s-day04/src/com/inmind/map01/Poker.java
@@ -0,0 +1,21 @@
+package com.inmind.map01;
+
+public class Poker implements Comparable<Poker>{
+    String pokerName;//牌面
+    int index;//牌的索引，用来排序
+
+    public Poker(String pokerName, int index) {
+        this.pokerName = pokerName;
+        this.index = index;
+    }
+
+    @Override
+    public String toString() {
+        return this.pokerName+" ";
+    }
+
+    @Override
+    public int compareTo(Poker o) {
+        return this.index - o.index;
+    }
+}
diff --git a/s-day04/src/com/inmind/map01/Test09.java b/s-day04/src/com/inmind/map01/Test09.java
new file mode 100644
index 0000000..5c6b947
--- /dev/null
+++ b/s-day04/src/com/inmind/map01/Test09.java
@@ -0,0 +1,84 @@
+package com.inmind.map01;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+
+/*
+案例介绍
+按照斗地主的规则，完成洗牌发牌的动作。(洗牌打乱Collections.shuffle()只能打乱list集合)
+具体规则：
+组装54张扑克牌将54张牌顺序打乱
+三个玩家参与游戏，三人交替摸牌，每人17张牌，最后三张留作底牌。（创建4个集合，3个玩家，1个底牌）
+查看三人各自手中的牌（按照牌的大小排序）、底牌【自然排序或者比较器Comparable Comparator】
+规则：手中扑克牌从大到小的摆放顺序：大王,小王,2,A,K,Q,J,10,9,8,7,6,5,4,3【打印牌即可】
+
+        54键----“大王”
+        */
+public class Test09 {
+    public static void main(String[] args) {
+        String[] nums = {"3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K", "A", "2"};
+        String[] colors = {"♦", "♣", "♥", "♠"};
+        //定义一个集合存放我们牌对象
+        ArrayList<Poker> pokers = new ArrayList<>();
+        int index = 1;
+        for (String num : nums) {
+            for (String color : colors) {
+                String pokerName = color+num;
+                pokers.add(new Poker(pokerName,index++));
+            }
+        }
+        pokers.add(new Poker("小王", index++));
+        pokers.add(new Poker("大王", index++));
+        System.out.println(pokers);
+        //洗牌
+        Collections.shuffle(pokers);
+        System.out.println(pokers);
+        //（创建4个集合，3个玩家，1个底牌）
+        ArrayList<Poker> play1 = new ArrayList<>();
+        ArrayList<Poker> play2 = new ArrayList<>();
+        ArrayList<Poker> play3 = new ArrayList<>();
+        ArrayList<Poker> dipai = new ArrayList<>();
+
+        /*
+        玩家1     0       3       6       %3  = 0
+        玩家2     1       4       7       %3  = 1
+        玩家3     2       5       8       %3  = 2
+         */
+        for (int i = 0; i < pokers.size(); i++) {
+            if (i > 50) {
+                dipai.add(pokers.get(i));
+            } else {
+                switch (i%3) {
+                    case 0:
+                        play1.add(pokers.get(i));
+                        break;
+                    case 1:
+                        play2.add(pokers.get(i));
+                        break;
+                    case 2:
+                        play3.add(pokers.get(i));
+                        break;
+                }
+            }
+        }
+
+        //看牌之前先排序
+        //可以使用比较器替代自然排序
+        Comparator<Poker> pokerComparator = new Comparator<Poker>() {
+            @Override
+            public int compare(Poker o1, Poker o2) {
+                return o2.index - o1.index;
+            }
+        };
+        Collections.sort(play1,pokerComparator);
+        Collections.sort(play2,pokerComparator);
+        Collections.sort(play3,pokerComparator);
+        Collections.sort(dipai,pokerComparator);
+        System.out.println("玩家1："+play1);
+        System.out.println("玩家2："+play2);
+        System.out.println("玩家3："+play3);
+        System.out.println("底牌："+dipai);
+
+    }
+}