python-函数模块基础语法复习

# test1
def greet_user():print("hello")
greet_user()# test2
def greet_user(username):#形参print(f"hello,{username.title()}")
greet_user("name")#实参# test3
def display(text):print(f"我在本章学的是{text}")
display("函数")# test4
def favorite_book(book):print(f"one of my favorite book is {book}")
favorite_book("alice in wonderland")# test5传递多个位置实参
def discribe_name(type,name):print(f"type is {type}")print(f"name is {name}")
discribe_name("dog","pet")# test6传递多个关键字实参，指定各个实参对应的形参
def discribe_name(type,name):print(f"type is {type}")print(f"name is {name}")
discribe_name(type="dog",name="pet")# test7:给每个形参指定默认值,必须先给出没有默认值的形参
def discribe_name(name,type='dog'):print(f"type is {type}")print(f"name is {name}")
discribe_name(name="pet")#test8
def make_t(size,text):print(f"size is {size},name is {text}")
make_t("m","fish")# test9
def make_lt(size,text = "I love T"):print(f"size is {size},text is {text}")
make_lt("s")
make_lt("m")
make_lt("l")# test10
def get_formated_name(first_name,last_name):full_name = f"{first_name}{last_name}"return full_name.title()#首字母大写格式
musican = get_formated_name('jimi','hendrix')
print(musican)# test11,让参数变成可选的,处理中间名为空的情况
def get_formated_name(first_name,middle_name,last_name):if middle_name:full_name = f"{first_name}{middle_name}{last_name}"else:full_name = f"{first_name}{last_name}"return full_name.title()#首字母大写格式
musican = get_formated_name('jimi','hendrix','end_name')
print(musican)musican = get_formated_name('jimi','end_name')
print(musican)# test12 返回字典
def build_person(first_name,last_name):person  = {'first':first_name,'last':last_name}return person
musican1 = build_person('yu','fish')
print(musican1)test13 结合函数使用while循环,设置截至输入的条件
def get_formated_name(first_name,last_name):full_name = f"{first_name}{last_name}"return full_name.title()#首字母大写格式
while True:print("\nplace tell me you name:")print("enter q at any time to quit")f_name = input("first_name")if f_name == 'q':breakl_name = input("last_name")if l_name == 'q':breakformated_name = get_formated_name(f_name,l_name)print(f"hello,{formated_name}")# test14
def city_country(country,city):city_name = f"{country}{city}"return city_name
name1 = city_country("cn","kunming")
print(name1)
name2 = city_country("UN","CO")
print(name2)# test15，数量是可选的，因此把设置成空字符串，放在最末尾
def make_album(name1,name2,num = ''):if num :#判断是否有值是这么写的album = f"song name is {name1},album name is {name2},mumber is {num}"else:album = f"song name is {name1},album name is {name2}"return album
album1 = make_album(name1='周杰伦',name2 = '烟花易冷')
print(album1)# test16  注意字符串一定要用引号
def make_album(name1,name2):album = f"song name is {name1},album name is {name2}"return album
while True:print("input q at any time to quit")song_name = input("请输歌手名:")if song_name == 'q':breakalbum_name = input("请输入歌曲名：")if album_name== 'q':breakname = make_album(song_name,album_name)print({name})# test17 传递列表
def greet_user(names):for user in names:print(f"hello,{user}")
names = ['张三','李四','王五']
greet_user(names)# test18在函数中修改列表
unprinted_designs = ['phone_case','robot pendant','dodecachedron']
completed_models =[]while unprinted_designs:curent_design = unprinted_designs.pop()print(f"printing model:{curent_design}")completed_models.append(curent_design)
print("\nthe following modul have been printed:")
for complated_model in completed_models:print(complated_model)# test19传递任意数量的实参,让topping创建一个名为toppings的空元组
# 并将收到的值都封装到这个元组中
def make_pizza(*toppings):"""打印客户点的所有配料:param toppings::return:"""for top in toppings:print(top)
make_pizza('pep')
make_pizza('mushrooms','green pep','extra chees')# test20 结合使用位置实参和任意数量的实参
# python先匹配位置实参和关键字实参，再将余下的实参都收集到一个形参中
def make_pizza(size,*topping):print(f"making a {size}-inch pizza with the following toppings:")for top in topping:print(f"{top}")
make_pizza(16,'pop')
make_pizza(20,'pep','pop')# test21,使用任意数量的关键字形参,*是元组，**是字典
# 输出：{'loc': 'c', 'age': 'd', 'first_name': 'a', 'last_name': 'b'}
def biuld_profile(first,last,**user_info):user_info['first_name'] = firstuser_info['last_name'] = lastreturn user_info
user_profile = biuld_profile('a','b',loc = 'c',age = 'd')
print(user_profile)# test22
def make_san(*san):for s in san:print(s)
make_san('草莓味','香蕉味','榴莲味')
make_san('橘子味')#test23
# 输出：{'loc': 'dali', 'money': '1000000000', 'name': 'fish', 'age': '15'}
def my_info(name,age,**my_info):my_info['name'] = namemy_info['age'] = agereturn my_info
my = my_info('fish','15',loc = 'dali',money = '1000000000')
print(my)# test24
# 输出：{'money': '20w', 'price': '100w', 'maker': 'CN', 'size': '20W'}
def car_info(maker,size,**car):car['maker']  = makercar['size'] = sizereturn car
my_car = car_info('CN','20W',money = '20w',price = '100w')
print(my_car)

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