请用python 写一个简单的RPG游戏

好的，我可以为您提供一个简单的 RPG 游戏设计，但是由于篇幅和时间限制，我只能提供一个简单的版本，您可以自行根据需求进行扩展。

游戏规则：

- 玩家可以选择角色类型（战士、法师、刺客）
- 玩家可以选择装备（武器、防具、饰品）
- 玩家可以与怪物战斗，战斗胜利可获得经验值和金币
- 经验值可以升级，升级后可以提升角色的属性值
- 金币可以购买装备和药品

代码实现：

import random

# 定义角色类
class Role:
    def __init__(self, name, role_type, health, attack, defense, magic):
        self.name = name
        self.role_type = role_type
        self.health = health
        self.attack = attack
        self.defense = defense
        self.magic = magic
        self.level = 1
        self.exp = 0
        self.max_exp = 100

    def show_info(self):
        print(f"{self.name} ({self.role_type}) Level: {self.level}")
        print(f"Health: {self.health}, Attack: {self.attack}, Defense: {self.defense}, Magic: {self.magic}")
        print(f"Exp: {self.exp}/{self.max_exp}")

    def attack_target(self, target):
        damage = max(0, self.attack - target.defense)
        target.health -= damage
        print(f"{self.name} attacks {target.name} and deals {damage} damage.")
        if target.health <= 0:
            print(f"{target.name} is defeated.")
            self.gain_exp(30)

    def gain_exp(self, exp):
        self.exp += exp
        if self.exp >= self.max_exp:
            self.level_up()

    def level_up(self):
        self.level += 1
        self.exp = 0
        self.max_exp = self.max_exp * 2
        self.health += random.randint(5, 10)
        self.attack += random.randint(1, 3)
        self.defense += random.randint(1, 3)
        self.magic += random.randint(1, 3)
        print(f"{self.name} levels up. Health: {self.health}, Attack: {self.attack}, Defense: {self.defense}, Magic: {self.magic}")

# 定义装备类
class Equipment:
    def __init__(self, name, equipment_type, health, attack, defense, magic, price):
        self.name = name
        self.equipment_type = equipment_type
        self.health = health
        self.attack = attack
        self.defense = defense
        self.magic = magic
        self.price = price

    def show_info(self):
        print(f"{self.name} ({self.equipment_type}) Health: {self.health}, Attack: {self.attack}, Defense: {self.defense}, Magic: {self.magic}, Price: {self.price}")

# 定义怪物类
class Monster:
    def __init__(self, name, health, attack, defense, gold):
        self.name = name
        self.health = health
        self.attack = attack
        self.defense = defense
        self.gold = gold

    def show_info(self):
        print(f"{self.name} Health: {self.health}, Attack: {self.attack}, Defense: {self.defense}, Gold: {self.gold}")

    def attack_target(self, target):
        damage = max(0, self.attack - target.defense)
        target.health -= damage
        print(f"{self.name} attacks {target.name} and deals {damage} damage.")
        if target.health <= 0:
            print(f"{target.name} is defeated.")
            target.gold += self.gold

# 定义战斗函数
def battle(player, monster):
    while player.health > 0 and monster.health > 0:
        player.attack_target(monster)
        if monster.health > 0:
            monster.attack_target(player)
    if player.health <= 0:
        print("You are defeated.")
    else:
        print("You win!")
        print(f"Gold: {player.gold}")
        player.gain_exp(50)

# 初始化角色、装备和怪物
player = Role("Player", "Warrior", 100, 20, 10, 5)
sword = Equipment("Sword", "Weapon", 0, 5, 0, 0, 20)
armor = Equipment("Armor", "Armor", 20, 0, 5, 0, 30)
ring = Equipment("Ring", "Accessory", 10, 0, 0, 5, 10)
monster1 = Monster("Goblin", 50, 10, 5, 10)
monster2 = Monster("Ogre", 80, 15, 10, 20)
monster3 = Monster("Dragon", 150, 30, 20, 50)

# 游戏开始
print("Welcome to Simple RPG Game!")
while True:
    # 显示角色信息和选项
    player.show_info()
    print("1. Equipments")
    print("2. Battle")
    print("3. Quit")
    choice = input("Enter your choice: ")
    if choice == "1":
        # 显示装备信息和选项
        print("Equipments:")
        sword.show_info()
        armor.show_info()
        ring.show_info()
        print("1. Equip Sword")
        print("2. Equip Armor")
        print("3. Equip Ring")
        print("4. Back")
        choice = input("Enter your choice: ")
        if choice == "1":
            player.attack += sword.attack
            print("Sword equipped.")
        elif choice == "2":
            player.defense += armor.defense
            player.health = min(player.health + armor.health, 100)
            print("Armor equipped.")
        elif choice == "3":
            player.magic += ring.magic
            player.health = min(player.health + ring.health, 100)
            print("Ring equipped.")
    elif choice == "2":
        # 显示怪物信息和选项
        print("Monsters:")
        monster1.show_info()
        monster2.show_info()
        monster3.show_info()
        print("1. Battle Goblin (Level 1)")
        print("2. Battle Ogre (Level 2)")
        print("3. Battle Dragon (Level 3)")
        print("4. Back")
        choice = input("Enter your choice: ")
        if choice == "1":
            battle(player, monster1)
        elif choice == "2" and player.level >= 2:
            battle(player, monster2)
        elif choice == "3" and player.level >= 3:
            battle(player, monster3)
        else:
            print("You are not strong enough to battle this monster.")
    elif choice == "3":
        print("Goodbye!")
        break
    else:
        print("Invalid choice.")

这是一个简单的 RPG 游戏，其中包含了角色、装备和怪物三个类，以及战斗函数和游戏开始部分的代码。您可以自行根据需求进行扩展和修改。