装饰器的运用示例

# -*- coding: UTF-8 -*-


def log(func):
    def wrapper(*arg, **kw):
        print('Start %s: ' % func)
        print('arg: ', arg)
        print('*arg: ', *arg)
        print('kw: ', kw)
        print('*kw: ', *kw)
        return func(*arg, **kw)
    return wrapper


@log  # 用上log装饰器
def func_a(*arg, **kw):
    print('------------------')
    print('ongoing func_a')


def func_b(*arg, **kw):
    print('------------------')
    print('ongoing func_b')


func_a(1, 2, 3, 5, 6, 7, a=1, b=2)
func_b(1, 2, 3, 5, 6, 7, a=1, b=2)