如何在python中运行函数同时返回值

def add_numbers(a, b):
    return a + b

result = add_numbers(3, 4)
print(result)  # 输出结果为7

def generate_numbers():
    yield 1
    yield 2
    yield 3

numbers = generate_numbers()
print(next(numbers))  # 输出结果为1
print(next(numbers))  # 输出结果为2
print(next(numbers))  # 输出结果为3

def get_user_info():
    name = "John"
    age = 25
    return [name, age]

user_info = get_user_info()
print(user_info[0])  # 输出结果为"John"
print(user_info[1])  # 输出结果为25

result = None

def calculate_sum(a, b):
    global result
    result = a + b

calculate_sum(3, 4)
print(result)  # 输出结果为7