Python语言程序设计（全英）智慧树知到课后章节答案2023年下华南理工大学

Python语言程序设计（全英）智慧树知到课后章节答案2023年下华南理工大学华南理工大学

第一章测试

WhichisNOTthemainpartofcomputer()

A:memory

B:CPU

C:Cache

D:I/Oequipment

答案:Cache

WhichsymbolcanbeusedforcommentsinPython()

A://

B:#

C:!

D:“

答案:#

;“

TheintegrateddevelopmenttoolbuiltintoPythonis().

A:IDLE

B:Jupyter

C:Pycharm

D:Vscode

答案:IDLE

Whichisthecorrectoperatorforpower(Xy)?()

A:X**y

B:X^^y

C:X^y

D:Noneofthementioned

答案:X**y

Whichofthefollowingisincorrect?()

A:float(4.2)

B:float("3")

C:float(3)

D:float("3+5")

答案:float("3+5")

第二章测试

Whichofthefollowingisaninvalidvariable?()

A:my_string_1

B:1st_string

C:foo

D:_

答案:1st_string

WhatwillbetheoutputofthefollowingPythoncode?

not(10＜20)andnot(10＞30)()

A:True

B:Nooutput

C:False

D:Error

答案:False

Whichonewillreturnerrorwhenaccessingthelist‘l’with10elements.()

A:l[-1]

B:l[0]

C:l[-10]

D:l[10]

答案:l[10]

WhatwillbetheoutputofthefollowingPythoncode?

lst=[3,4,6,1,2]

lst[1:2]=[7,8]

print(lst)()

A:[3,[7,8],6,1,2]

B:[3,4,6,7,8]

C:Syntaxerror

D:[3,7,8,6,1,2]

答案:[3,7,8,6,1,2]

Thefollowingprograminputdata:95,theoutputresultis?

(

)

A:

Pleaseenteryourscore:95

Yourabilityexceeds85%ofpeople!

B:

Pleaseenteryourscore:95

Awesome!

Yourabilityexceeds85%ofpeople!

C:

Pleaseenteryourscore:95

Awesome!

D:noneofthementioned

答案:

Pleaseenteryourscore:95

Awesome!

Yourabilityexceeds85%ofpeople!

第三章测试

Whichonedescriptionofconditioninthefollowingsiscorrect?()

A:Thecondition24＜=28＜25isillegal

B:Thecondition24＜=28＜25islegal,andtheoutputisTrue

C:Thecondition24＜=28＜25islegal,andtheoutputisFalse

D:Thecondition35＜=45＜75islegal,andtheoutputisFalse

答案:Thecondition24＜=28＜25islegal,andtheoutputisFalse

Theoutputofthefollowingprogramis?(

)

A:Python

B:python

C:None

D:t

答案:None

forvarin___:(

)

A:13.5

B:[1,2,3]

C:"Hello"

D:range(0,10)

答案:13.5

Afterthefollowingprogramisexecuted,thevalueofsis？(

)

A:9

B:47

C:19

D:46

答案:9

Whichistheoutputofthefollowingcode?a=30

b=1

ifa＞=10:

a=20

elifa＞=20:

a=30

elifa＞=30:

b=a

else:

b=0

print("a=",a,"b=",b)（）

A:a=30,b=1B:a=30,b=30C:a=20,b=1D:a=20,b=20

答案:a=20,b=1

第四章测试

WhichkeywordisusedtodefineafunctioninPython?()

A:fun

B:define

C:function

D:def

答案:def

WhatwillbetheoutputofthefollowingPythoncode?

(

)

A:

xis50

Changedlocalxto2

xisnow2

B:

xis50

Changedlocalxto2

xisnow50

C:

xis50

Changedlocalxto2

xisnow100

D:Noneofthementioned

答案:

xis50

Changedlocalxto2

xisnow50

WhicharetheadvantagesoffunctionsinPython?()

A:Improvingclarityofthecode

B:Easiertomanagethecode

C:Reducingduplicationofcode

D:Decomposingcomplexproblemsintosimplerpieces

答案:Improvingclarityofthecode

;Easiertomanagethecode

;Reducingduplicationofcode

;Decomposingcomplexproblemsintosimplerpieces

Howdoesthevariablelengthargumentspecifiedinthefunctionheading?()

A:twostarsfollowedbyavalididentifier

B:twounderscoresfollowedbyavalididentifier

C:oneunderscorefollowedbyavalididentifier

D:onestarfollowedbyavalididentifier

答案:onestarfollowedbyavalididentifier

WhatwillbetheoutputofthefollowingPythoncode?

list(map((lambdax:x**2),filter((lambdax:x%2==0),range(10))))()

A:Error

B:[0,4,16,36,64]

C:Nooutput

D:[0,1,2,3,4,5,6,7,8,9]

答案:[0,4,16,36,64]

第五章测试

Whichofthefollowingstatementscannotcreateademo.txtfile?()

A:f=open("demo.txt","x")

B:f=open("demo.txt","r")

C:f=open("demo.txt","w")

D:f=open("demo.txt","a")

答案:f=open("demo.txt","r")

Afterexecutingthefollowingprocedure,whatcontentwillbesavedinthefile？

file=open('test.txt','wt+')

file.write('helloSCUT')

file.close()

file=open('test.txt','at+')

file.write('helloworld')

file.close()()

A:helloSCUThelloworld

B:helloworld

C:helloSCUThelloworld

D:helloSCUTworld

答案:helloSCUThelloworld

WhichfunctionisnotthewayPythonreadsfiles.()

A:readtext()

B:read()

C:readline()

D:readlines()

答案:readtext()

HowtorenameafileinPython?()

A:=‘new_name.txt’

B:os.rename(fp,new_name)

C:os.set_name(existing_name,new_name)

D:os.rename(existing_name,new_name)

答案:os.rename(existing_name,new_name)

Whatistheusageoftell()functioninPython?()

A:tellsyoutheendpositionwithinthefile

B:noneofthementioned

C:tellsyouthecurrentpositionwithinthefile

D:tellsyouthefileisopenedornot

答案:tellsyouthecurrentpositionwithinthefile

第六章测试

WhatwillbetheoutputofthefollowingPythoncode?(

)

A:Reportserrorasoneargumentisrequiredwhilecreatingtheobject

B:Reportserrorasdisplayfunctionrequiresadditionalargument

C:Displays0,whichistheautomaticdefaultvalue

D:Runsnormally,doesn’tdisplayanything

答案:Reportserrorasoneargumentisrequiredwhilecreatingtheobject

WhatwillbetheoutputofthefollowingPythoncode?

(

)

A:‘Old’

B:Nothingisprinted

C:‘New’

D:Error

答案:‘Old’

WhatwillbetheoutputofthefollowingPythoncode?

(

)

A:Exceptionisthrown

B:__main__

C:test

D:Demo

答案:__main__

WhichoneofthefollowingsisnotcorrectaboutClasshierarchy?()

A:Subclasscaninheritallattributesfromsuperclass

B:Subclasscanhavemethodswithsamenameassuperclass

C:Subclasscanoverridethemethodsinheritedfromsuperclass

D:Subclasscannotaddmorebehavior/methods

答案:Subclasscannotaddmorebehavior/methods

WhatwillbetheoutputofthefollowingPythoncode?

(

)

A:00

B:Error,thesyntaxoftheinvokingmethodiswrong

C:01

D:ErrorbecauseclassBinheritsAbutvariablexisn’tinherited

答案:01

第七章测试

Numpyisathirdpartypackagefor____inPython?()

A:Lambdafunction

B:Array

C:Typecasting

D:Function

答案:Array

HowtoconvertaNumpyarraytoalistinPython?()

A:list.append(array)

B:array.list

C:list(array)

D:list.array

答案:list(array)

WhichkeywordisusedtoaccesstheNumpypackageinPython?()

A:from

B:import

C:fetch

D:load

答案:import

Whichoneiscorrectsyntaxforthe‘reshape()’functioninNumpy?()

A:reshape(shape,array)

B:reshape(array,shape)

C:array.reshape(shape)

D:reshape(shape)

答案:reshape(array,shape)

Whatwillbetheoutputforthefollowingcode?

importnumpyasnp

a=np.array([1,2,3],dtype=complex)

print(a)()

A:[[1.+0.j,2.+0.j,3.+0.j]]

B:[1.+0.j,2.+0.j,3.+0.j]

C