Python 함수 소개: getattr 함수의 사용법 및 예

class Car:
    def __init__(self, brand, color, price):
        self.brand = brand
        self.color = color
        self.price = price

car = Car("Toyota", "Blue", 20000)

# 使用getattr获取对象属性值
brand = getattr(car, "brand")
color = getattr(car, "color")
price = getattr(car, "price")

print(brand)  # 输出：Toyota
print(color)  # 输出：Blue
print(price)  # 输出：20000

person = {
    "name": "Alice",
    "age": 25,
    "email": "alice@example.com"
}

# 使用getattr获取字典的value值
name = getattr(person, "name")  # 等同于 person["name"]
age = getattr(person, "age")    # 等同于 person["age"]
email = getattr(person, "email")  # 等同于person["email"]

print(name)   # 输出：Alice
print(age)    # 输出：25
print(email)  # 输出：alice@example.com

class Animal:
    def __init__(self, name):
        self.name = name

dog = Animal("Dog")
cat = Animal("Cat")
lion = Animal("Lion")

animals = [dog, cat, lion]

for animal in animals:
    # 动态获取对象的属性值
    name = getattr(animal, "name")
    print(name)  # 输出：Dog Cat Lion