闭包和装饰器的应用

1.闭包

def run(pos):
    def go(step):
        nonlocal pos  #nonlocal关键字用来在函数或其他作用域中使用外层(非全局)变量
        new_pos = pos + step
        pos = new_pos
        return new_pos
    return go

s = run(ori)
print(s(1))
print(s(2))
print(s(3))

2.装饰器

def foo(func):
    def run(*args, **kwargs):
        print('this is a zhuangshiqi')
        func(*args, **kwargs)
    return run


@foo
def test(name, age, **kwargs):
    print('hello world' + name + age)
    print(kwargs)

test('xiaoming' , 'tom', a =1, b = 2)

转载于:https://www.cnblogs.com/jinbaobao/p/10957122.html