Python编程从入门到实践第八章-函数

Posted 2020-11-25 zhangyueba

8-1

def display():
    print("I will learn function in this chapter")#函数 function chapter章节
display()

8-2  

def favorite_book(title):
    print("One of my favorite book is " + title.title() + ".")
favorite_book(‘sword coming‘)

8-3

def make_shirt(size,style):
    print("The T-shirt‘s size is " + str(size) +",and style is " + style + ".")
make_shirt("22","Letter‘SB‘")

8-4

def make_shirt(size,style=‘I love Python‘):
    print("The T-shirt‘s size is " + size +",and style is " + style + ".")
make_shirt(‘big‘)
make_shirt(‘middle‘,‘I love c#‘)
输出：
The T-shirt‘s size is big,and style is I love Python.
The T-shirt‘s size is middle,and style is I love c#.

8-5

def city_coutry(city,country=‘China‘):
    print(city + " is in " + country + ".")
city_coutry(‘beijing‘)
city_coutry(‘hebei‘)
city_coutry(‘pairs‘,‘France‘)
输出：
beijing is in China.
hebei is in China.
pairs is in France.

8-6   太垃圾了。。

def city_coutry(city,country):
    inp = city + ‘,‘ + country
    return inp.title()
citys = city_coutry(‘beijing‘,‘china‘)
print(citys)
citys = city_coutry(‘shanghai‘,‘china‘)
print(citys)
citys = city_coutry(‘shenzhen‘,‘china‘)
print(citys)

8-7

def make_album(singer_name,album_name,song_num=‘‘):
    if song_num:
        makea = {‘singer‘:singer_name,‘album‘:album_name,‘num‘:song_num}
    else:
        makea = {‘singer‘:singer_name,‘album‘:album_name}
    return makea
makeal = make_album(‘wugu‘,‘caoge‘,‘15‘)
print(makeal)
makeal = make_album(‘woyebuxiangzheyang‘,‘liujiaying‘)
print(makeal)

8-8

def make_album(singer_name,album_name,song_num=‘‘):
    makea = {‘singer‘:singer_name,‘album‘:album_name,‘num‘:song_num}
    return makea
while True:
    print("
pPlease enter the name of singer and album you like:")
    print("enter ‘q‘ to quit!")
    singer_name = input("singer_name:")
    if singer_name == ‘q‘:
        break
    album_name = input("album_name:")
    if album_name == ‘q‘:
        break
输出：
pPlease enter the name of singer and album you like:
enter ‘q‘ to quit!
singer_name:liujiaying
album_name:woyebuxiangzheyang

pPlease enter the name of singer and album you like:
enter ‘q‘ to quit!
singer_name:q

8-9

def show_magicans(names):
    for name in names:
        print(name)
magican_name = (‘ayya‘,‘xixi‘,‘wuwu‘)
show_magicans(magican_name)
输出：
ayya
xixi
wuwu

8-10照着书上一步步来的，，不太明白意义

magican_names = [‘ayya‘,‘xixi‘,‘wuwu‘]
great_magicans = []
def make_great(magican_names,great_magicans):
    while magican_names:
        magican_name = magican_names.pop()
        great_magican = ‘the great ‘ + magican_name
        great_magicans.append(great_magican)
def show_magicans(great_magicans):
      for name in great_magicans:
            print(name)
make_great(magican_names,great_magicans)
show_magicans(great_magicans)
输出；
the great wuwu
the great xixi
the great ayya

8-11  在8-10 中， 倒数第二行改成make_great(magican_names[:],great_magicans)           验证结果 传给show_magicans() magican_names即可

8-12

def pizza_ins(*toppings):
    print(toppings)
pizza_ins(‘pingguo‘,‘putao‘,‘liulian‘)

8-13

def build_profile(first,last,**user_info):
    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(‘yu‘,‘zhang‘,
                                age =‘22‘,sex =‘man‘)
print(user_profile)

8-14   就改了几个词。。

def make_car(first,last,**user_info):
    profile = {}
    profile[‘first_name‘] = first
    profile[‘last_name‘] = last
    for key,value in user_info.items():
        profile[key] = value 
    return profile
car = make_car(‘sabru‘,‘outback‘,
                                color =‘blue‘,tow_package =‘True‘)
print(car)

 8-15 略 

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