PYTHON测试题卷与答案

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1.whatdoesthefollowingcodedo?〔B〕

defa(b,c,d):pass

A.definesalistandinitializesit

B.definesafunction,whichdoesnothing

C.definesafunction,whichpassesitsparametersthrough

D.definesanemptyclass

2.whatgetsprinted?Assumingpythonversion2.x(A)

printtype(1/2)

A.<type'int'>

B.<type'number'>

C.<type'float'>

D.<type'double'>

E.<type'tuple'>

3.whatistheoutputofthefollowingcode?〔E〕

printtype([1,2])

A.<type'tuple'>

B.<type'int'>

C.<type'set'>

D.<type'complex'>

E.<type'list'>

4.whatgetsprinted?〔C〕

deff():pass

printtype(f())

A.<type'function'>

B.<type'tuple'>

C.<type'NoneType'>

D.<type'str'>

E.<type'type'>

5.whatshouldthebelowcodeprint?(A)

printtype(1J)

A.<type'complex'>

B.<type'unicode'>

C.<type'int'>

D.<type'float'>

E.<type'dict'>

6.whatistheoutputofthefollowingcode?(D)

printtype(lambda:None)

A.<type'NoneType'>

B.<type'tuple'>

C.<type'type'>

D.<type'function'>

E.<type'bool'>

7.whatistheoutputofthebelowprogram?(D)

a=[1,2,3,None,(),[],]

printlen(a)

A.syntaxerror

B.4

C.5

D.6

E.7

8.whatgetsprinted?Assumingpythonversion3.x(C)

print(type(1/2))

A.<type'int'>

B.<type'number'>

C.<type'float'>

D.<type'double'>

E.<type'tuple'>

9.Whatgetsprinted?(C)

d=lambdap:p*2

t=lambdap:p*3

x=2

x=d(x)

x=t(x)

x=d(x)

printx

A.7

B.12

C.24

D.36

E.48

10.Whatgetsprinted?(A)

x=4.5

y=2

printx//y

A.2.0

B.2.25

C.9.0

D.20.25

E.21

11.Whatgetsprinted?(C)

nums=set([1,1,2,3,3,3,4])

printlen(nums)

A.1

B.2

C.4

D.5

E.7

12.Whatgetsprinted?(A)

x=True

y=False

z=False

ifxoryandz:

print"yes"

else:

print"no"

A.yes

B.no

C.failstocompile

13.Whatgetsprinted?(C)

x=True

y=False

z=False

ifnotxory:

print1

elifnotxornotyandz:

print2

elifnotxoryornotyandx:

print3

else:

print4

A.1

B.2

C.3

D.4

14.IfPYTHONPATHissetintheenvironment,whichdirectoriesaresearchedformodules?(D)

A)PYTHONPATHdirectory

B)currentdirectory

C)homedirectory

D)installationdependentdefaultpath

A.Aonly

B.AandD

C.A,B,andC

D.A,B,andD

E.A,B,C,andD

15.Inpython2.6orearlier,thecodewillprinterrortype1ifaccessSecureSystemraisesanexceptionofeitherAccessErrortypeorSecurityErrortype(B)

try:

accessSecureSystem()

exceptAccessError,SecurityError:

print"errortype1"

continueWork()

A.true

B.false

16.Thefollowingcodewillsuccessfullyprintthedaysandthenthemonths(B)

daysOfWeek=['Monday',

'Tuesday',

'Wednesday',

'Thursday',

'Friday',

'Saturday',

'Sunday']

months=['Jan',\

'Feb',\

'Mar',\

'Apr',\

'May',\

'Jun',\

'Jul',\

'Aug',\

'Sep',\

'Oct',\

'Nov',\

'Dec']

print"DAYS:%s,MONTHS%s"%

(daysOfWeek,months)

A.true

B.false

17.Assumingpython2.6whatgetsprinted?(A)

f=None

foriinrange(5):

withopen("data.txt","w")asf:

ifi>2:

break

printf.closed

A.True

B.False

C.None

18.Whatgetsprinted?(C)

counter=1

defdoLotsOfStuff():

globalcounter

foriin(1,2,3):

counter+=1

doLotsOfStuff()

printcounter

A.1

B.3

C.4

D.7

E.noneoftheabove

19.Whatgetsprinted?(C)

printr"\nwoow"

A.newlinethenthestring:woow

B.thetextexactlylikethis:r"\nwoow"

C.thetextlikeexactlylikethis:\nwoow

D.theletterrandthennewlinethenthetext:woow

E.theletterrthenthetextlikethis:nwoow

20.Whatgetsprinted?(B)

print"hello"'world'

A.ononelinethetext:helloworld

B.ononelinethetext:helloworld

C.helloononelineandworldonthenextline

D.syntaxerror,thispythonprogramwillnotrun

21.Whatgetsprinted?(E)

print"\x48\x49!"

A.\x48\x49!

B.4849

C.4849!

D.4849!

E.HI!

22.Whatgetsprinted?(D)

print0xA+0xa

A.0xA+0xa

B.0xA0xa

C.14

D.20

E.0x20

23.Whatgetsprinted?(E)

classparent:

def__init__(self,param):

self.v1=param

classchild(parent):

def__init__(self,param):

self.v2=param

obj=child(11)

print"%d%d"%(obj.v1,obj.v2)

A.NoneNone

B.None11

C.11None

D.1111

E.Errorisgeneratedbyprogram

24.Whatgetsprinted?(E)

kvps={"user","bill","password","hillary"}

printkvps['password']

A.user

B.bill

C.password

D.hillary

E.Nothing.Pythonsyntaxerror

25.Whatgetsprinted?(B)

66%on1871timesasked

classAccount:

def__init__(self,id):

self.id=id

id=666

acc=Account(123)

printacc.id

A.None

B.123

C.666

D.SyntaxError,thisprogramwillnotrun

26.Whatgetsprinted?(C)

name="snowstorm"

print"%s"%name[6:8]

A.st

B.sto

C.to

D.tor

E.SyntaxError

27.Whatgetsprinted?(D)

name="snowstorm"

name[5]='X'

printname

A.snowstorm

B.snowXstorm

C.snowXtorm

D.ERROR,thiscodewillnotrun

28.Whichnumbersareprinted?(C)

foriinrange(2):

printi

foriinrange(4,6):

printi

A.2,4,6

B.0,1,2,4,5,6

C.0,1,4,5

D.0,1,4,5,6,7,8,9

E.1,2,4,5,6

29.Whatsequenceofnumbersisprinted?(B)

values=[1,2,1,3]

nums=set(values)

defcheckit(num):

ifnuminnums:

returnTrue

else:

returnFalse

foriinfilter(checkit,values):

printi

A.123

B.1213

C.12131213

D.11112233

E.SyntaxError

30.Whatsequenceofnumbersisprinted?(E)

values=[2,3,2,4]

defmy_transformation(num):

returnnum**2

foriinmap(my_transformation,values):

printi

A.2324

B.4648

C.11.512

D.1112

E.49416

31.Whatnumbersgetprinted(C)

importpickle

classaccount:

def__init__(self,id,balance):

self.id=id

self.balance=balance

defdeposit(self,amount):

self.balance+=amount

defwithdraw(self,amount):

self.balance-=amount

myac=account('123',100)

myac.deposit(800)

myac.withdraw(500)

fd=open("archive","w")

pickle.dump(myac,fd)

fd.close()

myac.deposit(200)

printmyac.balance

fd=open("archive","r")

myac=pickle.load(fd)

fd.close()

printmyac.balance

A.500300

B.500500

C.600400

D.600600

E.300500

32.Whatgetsprintedbythecodesnippetbelow?(B)

importmath

printmath.floor(5.5)

A.5

B.5.0

C.5.5

D.6

E.6.0

33.Whatgetsprintedbythecodebelow?(E)

classPerson:

def__init__(self,id):

self.id=id

obama=Person(100)

obama.__dict__['age']=49

printobama.age+len(obama.__dict__)

A.1

B.2

C.49

D.50

E.51

34.Whatgetsprinted?(E)

x="foo"

y=2

printx+y

A.foo

B.foofoo

C.foo2

D.2

E.Anexceptionisthrown

35.Whatgetsprinted?(E)

defsimpleFunction():

"Thisisacoolsimplefunctionthatreturns1"

return1

printsimpleFunction.__doc__[10:14]

A.simpleFunction

B.simple

C.func

D.funtion

E.cool

36.Whatdoesthecodebelowdo?(C)

sys.path.append('/root/mods')

A.Changesthelocationthatthepythonexecutableisrunfrom

B.Changesthecurrentworkingdirectory

C.Addsanewdirectorytoseachforpythonmodulesthatareimported

D.Removesalldirectoriesformods

E.Changesthelocationwheresub-processesaresearchedforaftertheyarelaunched

37.Whatgetsprinted?(C)

importre

sum=0

pattern='back'

ifre.match(pattern,'backup.txt'):

sum+=1

ifre.match(pattern,'text.back'):

sum+=2

ifre.search(pattern,'backup.txt'):

sum+=4

ifre.search(pattern,'text.back'):

sum+=8

printsum

A.3

B.7

C.13

D.14

E.15

38.Whichofthefollowingprintstatementswillprintallthenamesinthelistonaseperateline(A)

names=['Ramesh','Rajesh','Roger','Ivan','Nico']

A.print"\n".join(names)

B.printnames.join("\n")

C.printnames.concatenate("\n")

D.printnames.append("\n")

E.printnames.join("%s\n",names)

39.Trueorfalse?Codeindentationmustbe4spaceswhencreatingacodeblock?(B)

iferror:

#fourspacesofindentareusedtocreatetheblock

print"%s"%msg

A.True

B.False

40.Assumingthefilenameforthecodebelowis/usr/lib/python/person.py

andtheprogramisrunas:

python/usr/lib/python/person.py

Whatgetsprinted?(D)

classPerson:

def__init__(self):

pass

defgetAge(self):

print__name__

p=Person()

p.getAge()

A.Person

B.getAge

C.usr.lib.python.person

D.__main__

E.Anexceptionisthrown

41.Whatgetsprinted(B)

foo={}

printtype(foo)

A.set

B.dict

C.list

D.tuple

E.object

42.Whatgetsprinted?(C)

foo=(3,4,5)

printtype(foo)

A.int

B.list

C.tuple

D.dict

E.set

43.Whatgetsprinted?(D)

country_counter={}

defaddone(country):

ifcountryincountry_counter:

country_counter[country]+=1

else:

country_counter[country]=1

addone('China')

addone('Japan')

addone('china')

printlen(country_counter)

A.0

B.1

C.2

D.3

E.4

44.Whatgetsprinted?(D)

confusion={}

confusion[1]=1

confusion['1']=2

confusion[1]+=1

sum=0

forkinconfusion:

sum+=confusion[k]

printsum

A.1

B.2

C.3

D.4

E.5

45.Whatgetsprinted?(C)

confusion={}

confusion[1]=1

confusion['1']=2

confusion[1.0]=4

sum=0

forkinconfusion:

sum+=confusion[k]

printsum

A.2

B.4

C.6

D.7

E.Anexceptionisthrown

46.Whatgetsprinted?(E)

boxes={}

jars={}

crates={}

boxes['cereal']=1

boxes['candy']=2

jars['honey']=4

crates['boxes']=boxes

crates['jars']=jars

printlen(crates[boxes])

A.1

B.2

C.4

D.7

E.Anexceptionisthrown

47.Whatgetsprinted?(E)

numberGames={}

numberGames[(1,2,4)]=8

numberGames[(4,2,1)]=10

numberGames[(1,2)]=12

sum=0

forkinnumberGames:

sum+=numberGames[k]

printlen(numberGames)+sum

A.8

B.12

C.24

D.30

E.33

48.Whatgetsprinted?(A)

foo={1:'1',2:'2',3:'3'}

foo={}

printlen(foo)

A.0

B.1

C.2

D.3

E.Anexceptionisthrown

49.Whatgetsprinted?(B)

foo={1:'1',2:'2',3:'3'}

delfoo[1]

foo[1]='10'

delfoo[2]

printlen(foo)

A.1

B.2

C.3

D.4

E.Anexceptionisthrown

50.Whatgetsprinted?(E)

names=['Amir','Barry','Chales','Dao']

printnames[-1][-1]

A.A

B.r

C.Amir

D.Dao

E.o

51.Whatgetsprinted?(B)

names1=['Amir','Barry','Chales','Dao']

names2=names1

names3=names1[:]

names2[0]='Alice'

names3[1]='Bob'

sum=0

forlsin(names1,names2,names3):

ifls[0]=='Alice':

sum+=1

ifls[1]=='Bob':

sum+=10

printsum

A.11

B.12

C.21

D.22

E.33

52.Whatgetsprinted?(E)

names1=['Amir','Barry','Chales','Dao']

loc=names1.index("Edward")

printloc

A.-1

B.0

C.4

D.Edward

E.Anexceptionisthrown

53.Whatgetsprinted?(B)

names1=['Amir','Barry','Chales','Dao']

if'amir'innames1:

print1

else:

print2

A.1

B.2

C.Anexceptionisthrown

54.Whatgetsprinted?(C)

names1=['Amir','Barry','Chales','Dao']

names2=[name.lower()fornameinnames1]

printnames2[2][0]

A.i

B.a

C.c

D.C

E.Anexceptionisthrown

55.Whatgetsprinted?(B)

numbers=[1,2,3,4]

numbers.append([5,6,7,8])

printlen(numbers)

A.4

B.5

C.8

D.12

E.Anexceptionisthrown

56.Whichofthefollowingdatastructurescanbeusedwiththe"in"operatortocheckifanitemisinthedatastructure?(E)

A.list

B.set

C.dictionary

D.Noneoftheabove

E.Alloftheabove

57.Watgetsprinted?(D)

list1=[1,2,3,4]

list2=[5,6,7,8]

printlen(list1+list2)

A.2

B.4

C.5

D.8

E.Anexceptionisthrown

58.Whatgetsprinted?(C)

defaddItem(listParam):

listParam+=[1]

mylist=[1,2,3,4]

addItem(mylist)

printlen(mylist)

A.1

B.4

C.5

D.8

E.Anexceptionisthrown

59.Whatgetsprinted?(E)

my_tuple=(1,2,3,4)

my_tuple.append((5,6,7))

printlen(my_tuple)

A.1

B.2

C.5

D.7

E.Anexceptionisthrown

60.Whatgetsprinted?(B)

a=1

b=2

a,b=b,a

print"%d%d"%(a,b)

A.12

B.21

C.Anexceptionisthrown

D.Thisprogramhasundefinedbehavior

61.Whatgetsprinted?(A)

defprint_header(str):

print"+++%s+++"%str

print_header.category=1

print_header.text="someinfo"

print_header("%d%s"%\

(print_header.category,print_header.text))

A.+++1someinfo+++

B.+++%s+++

C.1

D.someinfo

62.Whatgetsprinted?(C)

defdostuff(param1,*param2):

printtype(param2)

dostuff('apples','bananas','cherry','dates')

A.str

B.int

C.tuple

D.list

E.dict

63.Whatgetsprinted?〔E〕

defdostuff(param1,**param2):

printtype(param2)

dostuff('capitals',Arizona='Phoenix',

California='Sacramento',Texas='Austin')

A.in

B.str

C.tuple

D.list

E.dict

64.Whatgetsprinted?(B)

defmyfunc(x,y,z,a):

printx+y

nums=[1,2,3,4]

myfunc(*nums)

A.1

B.3

C.6

D.10

E.Anexceptionisthrown

65.Howdoyoucreateapackagesothatthefollowingreferencewillwork?(C)

p=mytools.myparser.MyParser()

A.Declarethemyparserpackageinmytools.py

B.Createan__init__.pyinthehomedir

C.Insidethemytoolsdircreatea__init__.py

D.Createamyparser.pydirectoryinsidethemytoolsdirectory

E.Thiscannotbedone

66.Whatgetsprinted?(E)

classA:

def__init__(self,a,b,c):

self.x=a+b+c

a=A(1,2,3)

b=getattr(a,'x')

setattr(a,'x',b+1)

printa.x

A.1

B.2

C.3

D.6

E.7

67.Whatgetsprinted?(E)

classNumFactory:

def__init__(self,n):

self.val=n

deftimesTwo(self):

self.val*=2

defplusTwo(self):

self.val+=2

f=NumFactory(2)

formindir(f):

mthd=getattr(f,m)

ifcallable(mthd):

mthd()

printf.val

A.2

B.4

C.6

D.8

E.Anexceptionisthrown

68.Whatgetsprinted?(A)

one=chr(104)

two=chr(105)

print"%s%s"%(one,two)

A.hi

B.h

C.Insidethemytoolsdircreatea__init__.pyandmyparser.py

D.104105

E.104

69.Whatgetsprinted?(A)

x=0

y=1

a=cmp(x,y)

ifa<x:

print"a"

elifa==x:

print"b"

else:

print"c"

A.a

B.b

C.c

70.Whatgetsprinted?(C)

x=1

y="2"

z=3

sum=0

foriin(x,y,z):

ifisinstance(i,int):

sum+=i

printsum

A.2

B.3

C.4

D.6

E.Anexceptionisthrown

71.Whatgetsprinted(withpythonversion2.X)assumingtheuserentersthefollowingattheprompt?(D)

#:foo

a=input("#:")

printa

A.f

B.foo

C.#:foo

D.Anexceptionisthrown

72.Whatgetsprinted?(C)

x=sum(range(5))

printx

A.4

B.5

C.10

D.15

E.Anexceptionisthrown

73.Iftheusertypes'0'atthepromptwhatgetsprinted?(B)

defgetinput():

print"0:start"

print"1:stop"

print"2:reset"

x=raw_input("selection:")

tr