哈哈哈哈-我的天啊-这是计算机专业只是.doc

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1、1)Whatcommanddoyouenterintotheterminalbash-shelltoenterintothepython3shell?python3a)-pythonpull_wordsb)-python3c)-gitgitcheckpythond)-python()e)-quit()2)Howcanweselectthesecondcityinourfavorite_citieslistdefineahead?favorite_cities=["Lagos","Chongqing","Istanbul"]favorite_cities[1]

2、a)-favorite_cities(2)b)-favorite_cities[2]c)-favorite_cities[1]d)-favorite_cities(1)3)Variablenamescancontainletters,numbersandunderscores.Theymayalsobeginwithanumber.Falsea)-Trueb)-False4)Whathappensifyouassignavaluetoavariable,andthenassignavaluetoitagain.Thepreviousvalueofthevar

3、iablewillbeoverwritten.a)-Nothingwillhappenb)-Thepreviousvalueofthevariablewillbeoverwritten.c)-thepreviousvalueofthevariablewillberemainthesame..d)-Pythonwillraiseanerror5)Whatpositionnumberwillbeprinted?ANameErrorwilloccura)-3b)-ANameErrorwilloccurc)-4d)-1e)-26)Whichoftheseisthec

4、orrectoutput?mpata)-Noneoftheotheranswerchoicesarecorrect.b)-mpatc)-emphhd)-mpatte)-emph7)1)Whatdoesthefollowingexpressionevaluateto?9+4*217a)-Noneoftheaboveb)-53c)-28d)-26e)-178)Thereisafoldercalledlovely_worldinyourbeautiful_lifefolderlocatedinyourDocumentsfolderinyourhomeuserdir

5、ectory.Howcanyoucdintothisdirectory?cd~/Documents/beautiful_life/lovely_worlda)-mkdir~/Documents/lovely_world/beautiful_lifeb)-cdc)-cd~/Documents/beautiful_life/lovely_worldd)-cd~/documents/beautiful_life/lovely_worlde)-cd~/documents/lovely_world/beautiful_life9)Whatisatype?Atypeis

6、adescriptionofwhatkindofthingavalueis,andPythonusesthatinformationtodeterminelaterwhatyoucandowiththatvalue,andwhatkindsofexpressionsthatvaluecanbeusedin.a)-Atypeisaspecialkeywordthatallowsyoutoauto-complete,butonlyifthedocumentyouaretryingtoaccessexists.Ifitdoesnotyoumustcreateit.

7、b)-Atypeisadescriptionofwhatkindofthingavalueis,andPythonusesthatinformationtodeterminelaterwhatyoucandowiththatvalue,andwhatkindsofexpressionsthatvaluecanbeusedin.c)-Atypeisadescriptionoftheamountofcharactersanobjecthas.d)-Atypeisadescriptionofthewayyouwritecode10)Howdoyoucreateas

8、tring?name="eke"a)-name=["