Python学习 -- 高阶、闭包、回调、偏函数与装饰器探究

def outer_function(x):    def inner_function(y):        return x + yreturninner_functionadd_5 = outer_function(5)result = add_5(3)  # 输出：8

def process_data(data, callback):    result = []    for item in data:        result.append(callback(item))    return resultdef square(x):    return x ** 2numbers = [1, 2, 3, 4, 5]squared_numbers = process_data(numbers, square)print(squared_numbers)  # 输出：[1, 4, 9, 16, 25]

from functools import partialdef power(base, exponent):    return base ** exponentsquare = partial(power, exponent=2)cube = partial(power, exponent=3)result1 = square(4)  # 输出：16result2 = cube(3)    # 输出：27

def my_decorator(func):    def wrapper():        print("在函数执行之前")        func()        print("在函数执行之后")returnwrapper@my_decoratordef say_hello():print("Hello!")say_hello()