python人类与宠物模拟世界代码

以下是一个基于 Python 的简单的人类与宠物模拟世界代码示例：

import random

class Person:
    def __init__(self, name, age, gender, pet=None):
        self.name = name
        self.age = age
        self.gender = gender
        self.pet = pet
        
    def has_pet(self):
        return self.pet is not None
    
    def adopt_pet(self, pet):
        self.pet = pet
        
    def play_with_pet(self):
        if self.has_pet():
            print(f"{self.name} plays with {self.pet.name}.")
            self.pet.play()
        else:
            print(f"{self.name} doesn't have a pet to play with.")
        
class Pet:
    def __init__(self, name, species, mood=50):
        self.name = name
        self.species = species
        self.mood = mood
        
    def play(self):
        self.mood += random.randint(10, 20)
        print(f"{self.name} is happy!")
        
    def get_mood(self):
        return self.mood
        
    def __str__(self):
        return f"{self.name} ({self.species})"

# 创建人类和宠物对象
person1 = Person("Alice", 25, "Female")
person2 = Person("Bob", 30, "Male")
pet1 = Pet("Charlie", "Dog")
pet2 = Pet("Fluffy", "Cat")

# Alice和Bob分别领养一只宠物
person1.adopt_pet(pet1)
person2.adopt_pet(pet2)

# Alice玩宠物
person1.play_with_pet()

# Fluffy的心情
print(f"{pet2.name}'s mood is {pet2.get_mood()}.")

这个简单的代码示例创建了两个类：`Person`和`Pet`。一个`Person`对象可以拥有一个`Pet`对象，可以通过`adopt_pet()`方法领养一只宠物，通过`play_with_pet()`方法和宠物玩耍。`Pet`对象有一个`play()`方法，可以增加心情值，另外还有一个`get_mood()`方法，用于获取当前心情值。

你可以根据自己的需求对代码进行修改和扩展。