'''

#创建一个空列表，包含一些要打印的设计

unprinted_designs = ['iphone','robot','books']

completed_modles = []

#模拟打印每个设计，直到没有未打印的设计为止

while unprinted_designs:

current_design = unprinted_designs.pop()

#模拟根据设计制作3D打印模型的过程

print("Printing model:"+current_design)

completed_modles.append(current_design)

#显示打印好的所有模型

print('\n The following models have been printed:')

for completed_modle in completed_modles:

print(completed_modle)

#print(completed_modles)

print(unprinted_designs)

'''

--------------------------------------------------------------------------------------------------------------------

#定义两个函数，函数1：负责处于打印设计的工作，函数2：概述打印了哪些设计

# unprinted_designs = ['iphone','robot','books']

# completed_modles = []

def print_models(unprinted_designs): #定义打印设计的函数，包含两个形参：一个需要打印的设计列表和一个打印好的模型列表

"""

模拟打印每个设计，直到没有未打印的设计为止

打印每个设计后，都将其移动到列表completed_models中

:param unprinted_designs:

:param completed_models:

:return:

"""

while unprinted_designs:

current_design= unprinted_designs.pop()

#模拟根据设计制作3D打印模型的过程

print("Printing model:"+current_design)

completed_models.append(current_design)

for unprinted_design in unprinted_designs:

print("Unprinted:"+unprinted_design)

 

def show_completed_models(completed_models): #定义展示已打印的函数，包含一个形参：打印好的模型列表

"""显示打印的所有模型"""

print("\nThe following models have been printed:")

for completed_modle in completed_models:

print(completed_modle)

unprinted_designs = ['iphone','robot','books'] #传递两个列表

completed_models = []

print_models(unprinted_designs[:]) #调用打印函数和展示函数 [:]建立副本可保留原始列表的内容

show_completed_models(completed_models)

# print("Unprinted:"+unprinted_designs)