def greet_users(names):

    """向列表中的每个用户都发处问候"""

    for name in names:

        msg = "Hello ," + name.title() + "!"

        print(msg)

usernames = ['baker','xiaocui','xiaoding']

greet_users(usernames)

unprinted_designs = ['iphone case' ,'robot pendant' , 'dodecahedron']

completed_models = []

while unprinted_designs:

    current_design = unprinted_designs.pop()

    print("Pringting model:" + current_design)

    completed_models.append(current_design)

print("\nThe following models have been printed:")

for completed_model in completed_models:

    print(completed_model)

print(completed_models[:])

def make_pizza(*toppings):

    """打印顾客点的配料"""

    print(toppings)

make_pizza('pepperoni')

make_pizza('mushrooms','green peppers','extra cheese')

def build_profile(first, last, **user_info):

    """创建一个字典，其中包含我们知道的有关用户的一切"""

    profile = {}

    profile['first_name'] = first

    profile['last_name'] = last

    for key,value in user_info.items():

        profile[key] = value

    return profile

user_profile = build_profile('albert','einstein',location='princeton',field='physics')

print(user_profile)

import pizza

pizza.make_pizza(,'pepperonis')

pizza.make_pizza(,'mushrooms','green peppers','extra cheese')

from pizza import make_pizza

make_pizza(,'pepperonis')

from pizza import make_pizza as mp

mp(,'pepperonis')

import pizza as p

make_pizza(,'pepperonis')

from pizza import *

make_pizza(,'pepperonis')