详解python中return和print的区别和用途

def add(a, b):
    result = a + b
    return result

sum = add(3, 5)
print(sum)  # 输出 8

def greet(name):
    if name:
        return f"Hello, {name}!"
    return "Hello, Guest!"

message = greet("Alice")
print(message)  # 输出 "Hello, Alice!"

def show_info(name, age):
    print(f"Name: {name}")
    print(f"Age: {age}")

show_info("Bob", 30)

def divide(a, b):
    if b == 0:
        print("Error: Division by zero")
        return None
    return a / b

result = divide(6, 2)
print(result)  # 输出 3.0

# 计算阶乘并返回结果
def factorial(n):
    if n == 0:
        return 1
    return n * factorial(n - 1)

result = factorial(5)
print(result)  # 输出 120

# 返回多个值
def get_name_and_age():
    name = "Alice"
    age = 25
    return name, age

name, age = get_name_and_age()
print(f"Name: {name}, Age: {age}")  # 输出 "Name: Alice, Age: 25"

# 调试输出
def calculate_sum(a, b):
    print(f"Calculating sum of {a} and {b}")
    result = a + b
    print(f"Result: {result}")
    return result

sum = calculate_sum(3, 5)  # 输出调试信息