diff --git a/mymath.py b/mymath.py
new file mode 100644
index 0000000..0b1b06b
--- /dev/null
+++ b/mymath.py
@@ -0,0 +1,127 @@
+#!/usr/bin/env python3
+"""
+石头剪刀布游戏
+玩家与电脑对决，记录胜负平局次数
+"""
+
+import random
+import sys
+
+def get_computer_choice():
+    """随机返回电脑的选择"""
+    choices = ['rock', 'paper', 'scissors']
+    return random.choice(choices)
+
+def get_player_choice():
+    """获取玩家的选择"""
+    while True:
+        print("\n请选择: (1)石头 (2)剪刀 (3)布 (q)退出")
+        choice = input("你的选择: ").strip().lower()
+
+        if choice == 'q':
+            return None
+        elif choice == '1' or choice == 'rock':
+            return 'rock'
+        elif choice == '2' or choice == 'scissors':
+            return 'scissors'
+        elif choice == '3' or choice == 'paper':
+            return 'paper'
+        else:
+            print("无效的选择，请重试!")
+
+def determine_winner(player, computer):
+    """判断胜负"""
+    if player == computer:
+        return 'draw'
+
+    winning_combinations = {
+        'rock': 'scissors',      # 石头赢剪刀
+        'scissors': 'paper',     # 剪刀赢布
+        'paper': 'rock'          # 布赢石头
+    }
+
+    if winning_combinations[player] == computer:
+        return 'player'
+    else:
+        return 'computer'
+
+def play_game():
+    """主游戏循环"""
+    print("=" * 40)
+    print("欢迎来到石头剪刀布游戏!")
+    print("=" * 40)
+
+    stats = {'player': 0, 'computer': 0, 'draw': 0}
+
+    while True:
+        player_choice = get_player_choice()
+        if player_choice is None:
+            break
+
+        computer_choice = get_computer_choice()
+        print(f"\n你的选择: {player_choice}")
+        print(f"电脑的选择: {computer_choice}")
+
+        winner = determine_winner(player_choice, computer_choice)
+
+        if winner == 'player':
+            print("🎉 你赢了!")
+            stats['player'] += 1
+        elif winner == 'computer':
+            print("💻 电脑赢了!")
+            stats['computer'] += 1
+        else:
+            print("🤝 平局!")
+            stats['draw'] += 1
+
+        print(f"\n当前战绩: 你 {stats['player']} 胜, 电脑 {stats['computer']} 胜, 平局 {stats['draw']}")
+
+    print("\n" + "=" * 40)
+    print("游戏结束! 最终战绩:")
+    print(f"你赢了 {stats['player']} 次")
+    print(f"电脑赢了 {stats['computer']} 次")
+    print(f"平局 {stats['draw']} 次")
+    print("=" * 40)
+
+    return stats
+
+def test_game():
+    """测试游戏逻辑"""
+    print("正在测试游戏逻辑...")
+
+    # 测试胜负判断
+    test_cases = [
+        ('rock', 'scissors', 'player'),
+        ('rock', 'paper', 'computer'),
+        ('rock', 'rock', 'draw'),
+        ('scissors', 'paper', 'player'),
+        ('scissors', 'rock', 'computer'),
+        ('scissors', 'scissors', 'draw'),
+        ('paper', 'rock', 'player'),
+        ('paper', 'scissors', 'computer'),
+        ('paper', 'paper', 'draw'),
+    ]
+
+    passed = 0
+    for player, computer, expected in test_cases:
+        result = determine_winner(player, computer)
+        if result == expected:
+            passed += 1
+        else:
+            print(f"测试失败: {player} vs {computer}, 预期 {expected}, 得到 {result}")
+
+    print(f"测试完成: {passed}/{len(test_cases)} 通过")
+    return passed == len(test_cases)
+
+if __name__ == "__main__":
+    # 运行测试
+    if len(sys.argv) > 1 and sys.argv[1] == '--test':
+        if test_game():
+            print("所有测试通过!")
+            sys.exit(0)
+        else:
+            print("测试失败!")
+            sys.exit(1)
+    else:
+        # 运行游戏
+        play_game()
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