8.5传递任意数量的实参

传递任意数量的实参

def make_pizza(*toppings):
"""打印顾客点的所有配料"""
print(toppings)

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

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def make_pizza(*toppings):
"""概述要制作的比萨"""
print("Making a pizza with the following toppings:")
for topping in toppings:
print("- " + topping)

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

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结合使用位置实参和任意数量实参

def make_pizza(size,*toppings):
"""概述要制作的比萨"""
print("Making a " + str(size) +
"-inch pizza with the following toppings:")
for topping in toppings:
print("- " + topping)

make_pizza(16,'huotuichang')
make_pizza(12,'mushrooms','green peppers','extra cheese')

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使用任意数量的关键字实参

def build_profile(first,last,**user_info):
"""创建一个字典，其中包含我们知道的用户的一切"""
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('jiao','shuai',
location= 'princetion',
field= 'physics')
print(user_profile)

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三明治

def make_sandwich(*items):
"""概述要加的东西"""
print("I'll make you a great sandwich:")
for item in items:
print("...adding " + item + "in you sandwich:")
print("Your sandwich is ready",'\n')

make_sandwich('roast beef', 'cheddar cheese', 'lettuce', 'honey dijon')
make_sandwich('turkey', 'apple slices', 'honey mustard')
make_sandwich('peanut butter', 'strawberry jam')

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用户简介

def build_profile(first,last,**user_info):
"""创建一个字典，其中包含我们知道的用户的一切"""
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('jiao','shuai',
location= 'princetion',
field= 'physics',
language= 'python')
print(user_profile)

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汽车

def make_car(manufacturer, model, **options):
"""创建一个字典，包含我们知道的车的一切"""
car = {'manufacturer': manufacturer.title(),
'model': model.title()}
for option, value in options.items():
car[option] = value

return car

my_outback = make_car('subaru', 'outback', color='blue', tow_package=True)
print(my_outback)
my_accord = make_car('honda', 'accord', year=1991, color='white',
headlights='popup')
print(my_accord)

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