《高级编程技术》作业[3]——第三章部分习题选做
2018-03-14 20:28
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#3-4 invited_person = ['mrs. white', 'mr. black', 'eric matthes'] for person in invited_person: print('Welcome to my dinner, ' + person.title()) print('\n') #3-5 print('Oh no, ' + invited_person[2].title() + " can't join us!\n") invited_person[2] = 'haoqiang tan' for person in invited_person: print('Welcome to my dinner, ' + person.title()) print('\n') #3-6 invited_person.insert(0, "donald trump") invited_person.insert(1, "kim jong un") invited_person.append('dr. wang') for person in invited_person: print('Welcome to my dinner, ' + person.title()) #3-7 print('\nSorry every one, only two special guests can be invited') while len(invited_person) > 2: person = invited_person.pop() print("I can't invite you, " + person.title()) print("\nCongratulations, I will invite you two good friends!") for person in invited_person: print("\t"+person.title()) del invited_person[0] del invited_person[0] print(invited_person) #3-9 print("\nI invited " + str(len(invited_person)) + " peopele to my dinner.")输出如下:Welcome to my dinner, Mrs. White
Welcome to my dinner, Mr. Black
Welcome to my dinner, Eric Matthes
Oh no, Eric Matthes can't join us!
Welcome to my dinner, Mrs. White
Welcome to my dinner, Mr. Black
Welcome to my dinner, Haoqiang Tan
Welcome to my dinner, Donald Trump
Welcome to my dinner, Kim Jong Un
Welcome to my dinner, Mrs. White
Welcome to my dinner, Mr. Black
Welcome to my dinner, Haoqiang Tan
Welcome to my dinner, Dr. Wang
Sorry every one, only two special guests can be invited
I can't invite you, Dr. Wang
I can't invite you, Haoqiang Tan
I can't invite you, Mr. Black
I can't invite you, Mrs. White
Congratulations, I will invite you two good friends!
Donald Trump
Kim Jong Un
[]
I invited 0 peopele to my dinner.
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