# 8.4.1 在函數中修改列表def greet_user(names): '''向列表中的每位用戶都發出簡單的問候''' for name in names: msg = "Hello, " + name.title() + "!" print(msg) usernames = ['star', ...
# 8.4.1 在函數中修改列表
def greet_user(names):
'''向列表中的每位用戶都發出簡單的問候'''
for name in names:
msg = "Hello, " + name.title() + "!"
print(msg)
usernames = ['star','james','wendy']
greet_user(usernames)
# 不使用函數修改列表
# 首先創建一個列表，其中要包含一些列印的設計
unprinted_designs = ['iphone case', 'robot pendant', 'dodecahedron']
completed_models = []
# 模擬列印每個設計，直到沒有未列印的設計為止
# 列印每個設計後，都將其移到列表completed_models中
while unprinted_designs:
current_design = unprinted_designs.pop()
# 模擬根據設計製作3D列印模型的過程
print("Printing model: " + current_design)
completed_models.append(current_design)
# 顯示列印好的所有模型
print("\nThe following models have been printed:")
for completed_model in completed_models:
print(completed_model)
# 使用函數修改列表
def print_models(unprinted_designs, completed_models):
'''
模擬列印每個設計，直到沒有未列印的設計為止
列印每個設計後，都將其移到列表completed中
'''
while unprinted_designs:
current_design = unprinted_designs.pop()
# 模擬根據設計製作3D列印模型的過程
print("Printing model: " + current_design)
completed_models.append(current_design)
def show_completed_models(completed_models):
'''顯示列印好的所有模型'''
print("\nThe following models hvae been printed:")
for completed_model in completed_models:
print(completed_model)
unprinted_designs = ['iphone case', 'robot pendant', 'dodecahedron']
completed_models = []
print_models(unprinted_designs, completed_models)
show_completed_models(completed_models)
# 8.4.2 禁止函數修改列表——function_name(lsit_name[:]),切片表示法[:]創建列表的副本
def print_models(unprinted_designs, completed_models):
'''
模擬列印每個設計，直到沒有未列印的設計為止
列印每個設計後，都將其移到列表completed中
'''
while unprinted_designs:
current_design = unprinted_designs.pop()
# 模擬根據設計製作3D列印模型的過程
print("Printing model: " + current_design)
completed_models.append(current_design)
def show_completed_models(completed_models):
'''顯示列印好的所有模型'''
print("\nThe following models hvae been printed:")
for completed_model in completed_models:
print(completed_model)
unprinted_designs = ['iphone case', 'robot pendant', 'dodecahedron']
completed_models = []
print_models(unprinted_designs[:], completed_models)
show_completed_models(completed_models)
# 8-9 魔術師
def show_magicians(names):
'''呈現列表中的名字'''
for name in names:
msg = "Welcome international magician, " + name.title() + "!"
print(msg)
usernames = ['james','wendy','star']
show_magicians(usernames)
# 8-10 了不起的魔術師
def show_magicians(list_name, modify_infor):
'''
修改列表中的每個信息，直到修改完成
修改後的信息，都將其移到modify_infor中
'''
while list_name:
current_names = list_name.pop()
# 修改信息的過程
print("\nModify information: " + current_names)
modify_infor.append(current_names)
def make_great(modify_info):
'''顯示修改好的信息'''
print("\nThe following information have benn modified:")
for modify_info in modify_infor:
print("The great magician is " + modify_info)
list_name = ['james','star','wendy']
modify_infor = []
show_magicians(list_name,modify_infor)
make_great(modify_infor)
print(list_name) # 原列表信息已經徹底變空
# 8-11 不變的魔術師
def show_magicians(list_name, modify_infor):
'''
修改列表中的每個信息，直到修改完成
修改後的信息，都將其移到modify_infor中
'''
while list_name:
current_names = list_name.pop()
# 修改信息的過程
print("\nModify information: " + current_names)
modify_infor.append(current_names)
def make_great(modify_info):
'''顯示修改好的信息'''
print("\nThe following information have benn modified:")
for modify_info in modify_infor:
print("The great magician is " + modify_info)
list_name = ['james','star','wendy']
modify_infor = []
show_magicians(list_name[:],modify_infor)
make_great(modify_infor)
print(list_name) # 原列表信息沒有改變
# 任意數量實參
def make_pizza(*toppings):
'''列印顧客點的所有配料'''
print(toppings)
make_pizza('pepperoni')
make_pizza('msshrooms','green peppers','extra cheese')
# 8.5.1 結合使用位置實參和任意數量實參
def make_pizza(size, *toppings):
'''概述要製作的披薩'''
print("\nMaking a " + str(size) +
"-inch pizza with the following toppings:")
for topping in toppings:
print("- " + topping)
make_pizza(16,'pepperoni')
make_pizza(12,'msshrooms','green peppers','extra cheese')
# 8.5.2 使用任意數量的關鍵字實參
def build_profile(first, last, **user_info): # 總是接受名和姓，還接受任意數量的關鍵字實參
'''創建一個字典，其中包含我們知道的有關於用戶的一切信息'''
profile = {}
profile['first_name'] = first # 匹配鍵-值對
profile['last_name'] = last # 匹配鍵-值對
for key, value in user_info.items():
profile[key]=value # 定義profile鍵_值對
return profile
user_profile = build_profile('albert','einstin',
location='princeton',
filed='pyhsics')
print(user_profile)
# 8-12 三明治
def make_sandwich(*toppings):
'''列印客戶要點的材料'''
print(toppings)
make_sandwich('tomato')
make_sandwich('cheese', 'meat', 'boun')
# 8-13 用戶簡介：
def build_profile(first, last, **user_info): # 兩個星號表示可容納任意數量的空字典
'''創建一個空字典，包含我有關的個人信息'''
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('sun','star',
location='suzhou',
age='27',
filed='planning')
print(user_profile)
# 8-14 汽車
def build_profile(first, last, **car_info):
'''創建一個空字典，包含我們知道的有關車的信息'''
profile = {}
profile['manufacturer:'] = first
profile['model:'] = last
for key, value in car_info.items():
profile[key] = value
return profile
car_profile = build_profile('sabaru','outback',
color='bule',
two_package=True)
print(car_profile)
# 8.6.1 導入整個模塊
'''子文件需要新建_init_.py空文件'''
from Function_library import pizza
'''模塊名稱pizza和函數名make_pizza(),並用句點分隔它們'''
pizza.make_pizza(16,'peppertoni')
pizza.make_pizza(12,'mushrooms', 'green peppers', 'extra cheese')
# 8.6.2 導入特定函數
'''from Function_library.pizza import:導入特定函數'''
from Function_library.pizza import make_pizza
'''顯式地導入函數make_pizza(),無須句點分隔，只需指定名稱'''
make_pizza(16,'peppertoni')
make_pizza(12,'mushrooms', 'green peppers', 'extra cheese')
# 8.6.4 使用as給模塊指定別名
'''from Function_library.pizza import make_=pizza as mp: 指定別名語法'''
from Function_library.pizza import make_pizza as mp
'''無須複雜輸入make_pizza,只需輸入mp即可'''
mp(16,'peppertoni')
mp(12,'mushrooms', 'green peppers', 'extra cheese')
# 8.6.5 導入模塊中的所有函數
'''使用(*)號運算符可讓python導入模塊中的所有函數:'''
from Function_library.pizza import *
make_pizza(16,'peppertoni')
make_pizza(12,'mushrooms', 'green peppers', 'extra cheese')
# 指定函數描述性名稱幫助你和別人明白代碼
# 每個函數都有包含簡要地闡述其功能的註釋,緊跟函數定義後面
