# -*- coding: utf-8 -*-

# author：baoshan

# 带参数的函数装饰器

def say_hello(country):

    def wrapper(func):

        def deco(*args, **kwargs):

            if country == 'china':

                print('你好！')

            elif country == 'america':

                print('hello')

            else:

                return

            func(*args, **kwargs)

        return deco

    return wrapper

@say_hello('china')

def chinese():

    print('我来自中国。')

@say_hello('america')

def america():

    print('I am from America.')

america()

print('-'*20)

chinese()

hello

I am from America.

--------------------

你好！

我来自中国。