# 案例 *toppings 形參名中的星號讓python建立了乙個空元組，並將收到的所有值都封裝到這個元組中
defmake_pizza
(*toppings)
:'''列印顧客點的所有配料'''
print
(toppings)
make_pizza(
'pepperoni'
)make_pizza(
'mushrooms'
,'green peopers'
,'extra cheese'
)
('pepperoni',)
('mushrooms', 'green peopers', 'extra cheese')
def
make_pizza
(*toppings)
:"""概述要做的比薩"""
print
("\n****** a pizza with the following toppings: "
)for topping in toppings:
print
("- "
+ topping)
make_pizza(
'pepperoni'
)make_pizza(
'mushrooms'
,'green peppers'
,'extra cheese'
)
****** a pizza with the following toppings:
- pepperoni
****** a pizza with the following toppings:
- mushrooms
- green peppers
- extra cheese
def
make_pizza
(size,
*toppings)
:print
("\n****** a "
+str
(size)
+"-inch pizza with the following toppings:"
)for topping in toppings:
print
("- "
+ topping)
make_pizza(16,
'pepperoni'
)make_pizza(12,
'mushrooms'
,'green peppers'
,'extra cheese'
)
****** a 16-inch pizza with the following toppings:
- pepperoni
****** a 12-inch pizza with the following toppings:
- mushrooms
- green peppers
- extra cheese
# 案例
defbuild_profile
(first,last,
**user_info)
:'''建立乙個字典，其中包含我們知道的有關使用者的一切'''
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)
# 1.三明治
# 編寫乙個函式，它接受顧客要在三明治中新增的一系列食材。這個函式只有乙個形參（它收集函式呼叫中提供的所有食材），並列印一條訊息，對顧客
# 點的三明治進行概述。呼叫這個函式三次，每次都提供不同數量的實參
defadd_sandwich
(*foods)
:print
("\n i'll make you a great sandwich: "
)for food in foods:
print
("....adding "
+ food +
" to your sandwich."
)print
("your sandwich is ready!"
)add_sandwich(
'roast beef'
,'cheddar cheese'
,'lettuce'
,'honey dijon'
)add_sandwich(
'turkey',,
'honey mustard'
)add_sandwich(
'peanut butter'
,'strawberry jam'
)
i'll make you a great sandwich:
....adding roast beef to your sandwich.
....adding cheddar cheese to your sandwich.
....adding lettuce to your sandwich.
....adding honey dijon to your sandwich.
your sandwich is ready!
i'll make you a great sandwich:
....adding turkey to your sandwich.
....adding honey mustard to your sandwich.
your sandwich is ready!
i'll make you a great sandwich:
....adding peanut butter to your sandwich.
....adding strawberry jam to your sandwich.
your sandwich is ready!
# 2.使用者簡介
# 在其中呼叫 build_profile() 來建立有關你的簡介；呼叫這個函式時，指定你的名和姓，以及三個描述你的鍵 - 值對。
defbuild_profile
(first,last,
**user_info)
:'''建立乙個字典，其中包含我們知道的有關使用者的一切'''
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(
'li'
,'yege'
, height =
'170cm'
, weight =
'70kg'
, hobby =
'basketball',)
print
(user_profile)
# 3.汽車
# 編寫乙個函式，將一輛汽車的資訊儲存在乙個字典中。這個函式總是接受製造商和型號，還接受任意數量的關鍵字實參。這樣呼叫這個函式：提供必不可
# 少的資訊，以及兩個名稱 — 值對，如顏色和選裝配件。這個函式必須能夠像下面這樣進行呼叫
defbuild_cars
(made_address, model,
**user_info)
: cars =
cars[
'address'
]= made_address
cars[
'model'
]= model
for key,value in user_info.items():
cars[key]
= value
print
(cars)
build_cars(
'china'
,'big'
,color =
'blue'
, name =
'changcheng'
)
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