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编写 Python 函数的 15 个级别,你现在是几级?

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第 1 级:基本功能:

pythondef greet(name):     return f“Hello, {name}!”
**级别 2:带参数和返回的函数:
def add(a, b):     return a + b
级别 3:默认参数值:
def power(base, exponent=2):    return base ** exponent
**级别 4:参数的可变数量:
def sum_all(*args):   return sum(args)
**级别 5:关键字参数:
def person_info(**kwargs):      return kwargs.get(“name”, “Unknown”), kwargs.get(“age”, “Unknown”)'
**级别 6:Lambda 函数:
double = lambda x: x * 2'''
第 7 级:递归函数:
def factorial(n):       if n == 0:          return 1 return n * factorial(n — 1)
第 8 级:高阶函数:
pythondef apply_operation(func, x, y):    return func(x, y)reslut= apply_operation(add, 3, 4)
**级别 9: 装饰器:
def uppercase_decorator(func):   def wrapper(*args, **kwargs):         result = func(*args, **kwargs)    return result.upper()return wrapper@uppercase_decoratordef greet(name):return f”Hello, {name}!”greet(“Alice”)丝”)
**级别 10:生成器:**
def countdown(n):    while n > 0:         yield nn -= 1
**级别 11:用于映射的匿名函数 (Lambda):
numbers = [1, 2, 3, 4, 5]squared = list(map(lambda x: x ** 2, numbers))
**级别 12:列表推导
squared = [x ** 2 for x in numbers]
**级别 13:生成器表达式:
squared_gen = (x ** 2 for x in numbers)
**级别 14:部分函数:
from functools import partialdef power(base, exponent):     return base ** exponentsquare = partial(power, exponent=2)cube = partial(power, exponent=3)
**级别 15:闭包:**
def outer_function(x):    def inner_function(y):        return x + yreturn inner_functionadd_five = outer_function(5) result = add_five(3)

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