Python的面试题/测试题汇总，带答案
*来源于网络整理
1.what does the following code do?（B）
def a(b, c, d): pass
A.defines a list and initializes it
B.defines a function, which does nothing
C.defines a function, which passes its parameters through
D.defines an empty class
2.what gets printed? Assuming python version 2.x(A)
print type(1/2)
A.<type 'int'>
B.<type 'number'>
C.<type 'float'>
D.<type 'double'>
E.<type 'tuple'>
3. what is the output of the following code?（E）
print type([1,2])
A.<type 'tuple'>
B.<type 'int'>
C.<type 'set'>
D.<type 'complex'>
E.<type 'list'>
4. what gets printed?（C）
def f(): pass
print type(f())
A.<type 'function'>
B.<type 'tuple'>
C.<type 'NoneType'>
D.<type 'str'>
E.<type 'type'>
5. what should the below code print?(A)
print type(1J)
A.<type 'complex'>
B.<type 'unicode'>
C.<type 'int'>
D.<type 'float'>
E.<type 'dict'>
6. what is the output of the following code?(D)
print type(lambda:None)
A.<type 'NoneType'>
B.<type 'tuple'>
C.<type 'type'>
D.<type 'function'>
E.<type 'bool'>
7. what is the output of the below program?(D)
a = [1,2,3,None,(),[],]
print len(a)
A.syntax error
B.4
C.5
D.6
E.7
8.what gets printed? Assuming python version 3.x(C)
print (type(1/2))
A.<type 'int'>
B.<type 'number'>
C.<type 'float'>
D.<type 'double'>
E.<type 'tuple'>
9. What gets printed?(C)
d = lambda p: p * 2
t = lambda p: p * 3
x = 2
x = d(x)
x = t(x)
x = d(x)
print x
A.7
B.12
C.24
D.36
E.48
10. What gets printed?(A)
x = 4.5
y = 2
print x//y
A.2.0
B.2.25
C.9.0
D.20.25
E.21
11. What gets printed?(C)
nums = set([1,1,2,3,3,3,4])
print len(nums)
A.1
B.2
C.4
D.5
E.7
12. What gets printed?(A)
x = True
y = False
z = False
if x or y and z:
print "yes"
else:
print "no"
A.yes
B.no
C.fails to compile
13. What gets printed?(C)
x = True
y = False
z = False
if not x or y:
print 1
elif not x or not y and z:
print 2
elif not x or y or not y and x:
print 3
else:
print 4
A.1
B.2
C.3
D.4
14. If PYTHONPATH is set in the environment, which directories are searched for modules?(D)
A) PYTHONPATH directory
B) current directory
C) home directory
D) installation dependent default path
A.A only
B.A and D
C.A, B, and C
D.A, B, and D
E.A, B, C, and D
15. In python 2.6 or earlier, the code will print error type 1 if accessSecureSystem raises an exception of either AccessError type or SecurityError type(B)
try:
accessSecureSystem()
except AccessError, SecurityError:
print "error type 1"
continueWork()
A.true
B.false
16. The following code will successfully print the days and then the months(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. Assuming python 2.6 what gets printed?(A)
f = None
for i in range (5):
with open("data.txt", "w") as f:
if i > 2:
break
print f.closed
A.True
B.False
C.None
18. What gets printed?(C)
counter = 1
def doLotsOfStuff():
global counter
for i in (1, 2, 3):
counter += 1
doLotsOfStuff()
print counter
A.1
B.3
C.4
D.7
E.none of the above
19. What gets printed?(C)
print r"\nwoow"
A.new line then the string: woow
B.the text exactly like this: r"\nwoow"
C.the text like exactly like this: \nwoow
D.the letter r and then newline then the text: woow
E.the letter r then the text like this: nwoow
20.What gets printed?(B)
print "hello" 'world'
A.on one line the text: hello world
B.on one line the text: helloworld
C.hello on one line and world on the next line
D.syntax error, this python program will not run
21.What gets printed?(E)
print "\x48\x49!"
A.\x48\x49!
B.4849
C.4849!
D. 48 49!
E.HI!
22. What gets printed?(D)
print 0xA + 0xa
A.0xA + 0xa
B.0xA 0xa
C.14
D.20
E.0x20
23. What gets printed?(E)
class parent:
def __init__(self, param):
self.v1 = param
class child(parent):
def __init__(self, param):
self.v2 = param
obj = child(11)
print "%d %d" % (obj.v1, obj.v2)
A.None None
B.None 11
C.11 None
D.11 11
E.Error is generated by program
24. What gets printed?(E)
kvps = {"user","bill", "password","hillary"}
print kvps['password']
A.user
B.bill
C.password
D.hillary
E.Nothing. Python syntax error
25. What gets printed?(B)
66% on 1871 times asked
class Account:
def __init__(self, id):
self.id = id
id = 666
acc = Account(123)
print acc.id
A.None
B.123
C.666
D.SyntaxError, this program will not run
26. What gets printed?(C)
name = "snow storm"
print "%s" % name[6:8]
A.st
B.sto
C.to
D.tor
E.Syntax Error
27. What gets printed?(D)
name = "snow storm"
name[5] = 'X'
print name
A.snow storm
B.snowXstorm
C.snow Xtorm
D.ERROR, this code will not run
28. Which numbers are printed?(C)
for i in range(2):
print i
for i in range(4,6):
print i
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. What sequence of numbers is printed?(B)
values = [1, 2, 1, 3]
nums = set(values)
def checkit(num):
if num in nums:
return True
else:
return False
for i in filter(checkit, values):
print i
A.1 2 3
B.1 2 1 3
C.1 2 1 3 1 2 1 3
D.1 1 1 1 2 2 3 3
E.Syntax Error
30. What sequence of numbers is printed?(E)
values = [2, 3, 2, 4]
def my_transformation(num):
return num ** 2
for i in map(my_transformation, values):
print i
A.2 3 2 4
B.4 6 4 8
C.1 1.5 1 2
D.1 1 1 2
E.4 9 4 16
31. What numbers get printed(C)
import pickle
class account:
def __init__(self, id, balance):
self.id = id
self.balance = balance
def deposit(self, amount):
self.balance += amount
def withdraw(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)
print myac.balance
fd = open( "archive", "r" )
myac = pickle.load( fd )
fd.close()
print myac.balance
A.500 300
B.500 500
C.600 400
D.600 600
E.300 500
32. What gets printed by the code snippet below?(B)
import math
print math.floor(5.5)
A.5
B.5.0
C.5.5
D.6
E.6.0
33. What gets printed by the code below?(E)
class Person:
def __init__(self, id):
self.id = id
obama = Person(100)
obama.__dict__['age'] = 49
print obama.age + len(obama.__dict__)
A.1
B.2
C.49
D.50
E.51
34. What gets printed?(E)
x = "foo "
y = 2
print x + y
A.foo
B.foo foo
C.foo 2
D.2
E.An exception is thrown
35. What gets printed?(E)
def simpleFunction():
"This is a cool simple function that returns 1"
return 1
print simpleFunction.__doc__[10:14]
A.simpleFunction
B.simple
C.func
D.funtion
E.cool
36. What does the code below do?(C)
sys.path.append('/root/mods')
A.Changes the location that the python executable is run from
B.Changes the current working directory
C.Adds a new directory to seach for python modules that are imported
D.Removes all directories for mods
E.Changes the location where sub-processes are searched for after they are launched
37. What gets printed?(C)
import re
sum = 0
pattern = 'back'
if re.match(pattern, 'backup.txt'):
sum += 1
if re.match(pattern, 'text.back'):
sum += 2
if re.search(pattern, 'backup.txt'):
sum += 4
if re.search(pattern, 'text.back'):
sum += 8
print sum
A.3
B.7
C.13
D.14
E.15
38. Which of the following print statements will print all the names in the list on a seperate line(A)
names = ['Ramesh', 'Rajesh', 'Roger', 'Ivan', 'Nico']
A.print "\n".join(names)
B.print names.join("\n")
C.print names.concatenate("\n")
D.print names.append("\n")
E.print names.join("%s\n", names)
39. True or false? Code indentation must be 4 spaces when creating a code block?(B)
if error:
# four spaces of indent are used to create the block
print "%s" % msg
A.True
B.False
40. Assuming the filename for the code below is /usr/lib/python/person.py
and the program is run as:
python /usr/lib/python/person.py
What gets printed?(D)
class Person:
def __init__(self):
pass
def getAge(self):
print __name__
p = Person()
p.getAge()
A.Person
B.getAge
C.usr.lib.python.person
D.__main__
E.An exception is thrown
41. What gets printed(B)
foo = {}
print type(foo)
A.set
B.dict
C.list
D.tuple
E.object
42. What gets printed?(C)
foo = (3, 4, 5)
print type(foo)
A.int
B.list
C.tuple
D.dict
E.set
43. What gets printed?(D)
country_counter = {}
def addone(country):
if country in country_counter:
country_counter[country] += 1
else:
country_counter[country] = 1
addone('China')
addone('Japan')
addone('china')
print len(country_counter)
A.0
B.1
C.2
D.3
E.4
44. What gets printed?(D)
confusion = {}
confusion[1] = 1
confusion['1'] = 2
confusion[1] += 1
sum = 0
for k in confusion:
sum += confusion[k]
print sum
A.1
B.2
C.3
D.4
E.5
45. What gets printed?(C)
confusion = {}
confusion[1] = 1
confusion['1'] = 2
confusion[1.0] = 4
sum = 0
for k in confusion:
sum += confusion[k]
print sum
A.2
B.4
C.6
D.7
E.An exception is thrown
46.What gets printed?(E)
boxes = {}
jars = {}
crates = {}
boxes['cereal'] = 1
boxes['candy'] = 2
jars['honey'] = 4
crates['boxes'] = boxes
crates['jars'] = jars
print len(crates[boxes])
A.1
B.2
C.4
D.7
E.An exception is thrown
47. What gets printed?(E)
numberGames = {}
numberGames[(1,2,4)] = 8
numberGames[(4,2,1)] = 10
numberGames[(1,2)] = 12
sum = 0
for k in numberGames:
sum += numberGames[k]
print len(numberGames) + sum
A.8
B.12
C.24
D.30
E.33
48. What gets printed?(A)
foo = {1:'1', 2:'2', 3:'3'}
foo = {}
print len(foo)
A.0
B.1
C.2
D.3
E.An exception is thrown
49. What gets printed?(B)
foo = {1:'1', 2:'2', 3:'3'}
del foo[1]
foo[1] = '10'
del foo[2]
print len(foo)
A.1
B.2
C.3
D.4
E.An exception is thrown
50. What gets printed?(E)
names = ['Amir', 'Barry', 'Chales', 'Dao']
print names[-1][-1]
A.A
B.r
C.Amir
D.Dao
E.o
51. What gets printed?(B)
names1 = ['Amir', 'Barry', 'Chales', 'Dao']
names2 = names1
names3 = names1[:]
names2[0] = 'Alice'
names3[1] = 'Bob'
sum = 0
for ls in (names1, names2, names3):
if ls[0] == 'Alice':
sum += 1
if ls[1] == 'Bob':
sum += 10
print sum
A.11
B.12
C.21
D.22
E.33
52. What gets printed?(E)
names1 = ['Amir', 'Barry', 'Chales', 'Dao']
loc = names1.index("Edward")
print loc
A.-1
B.0
C.4
D.Edward
E.An exception is thrown
53. What gets printed?(B)
names1 = ['Amir', 'Barry', 'Chales', 'Dao']
if 'amir' in names1:
print 1
else:
print 2
A.1
B.2
C.An exception is thrown
54. What gets printed?(C)
names1 = ['Amir', 'Barry', 'Chales', 'Dao']
names2 = [name.lower() for name in names1]
print names2[2][0]
A.i
B.a
C.c
D.C
E.An exception is thrown
55. What gets printed?(B)
numbers = [1, 2, 3, 4]
numbers.append([5,6,7,8])
print len(numbers)
A.4
B.5
C.8
D.12
E.An exception is thrown
56. Which of the following data structures can be used with the "in" operator to check if an item is in the data structure?(E)
A.list
B.set
C.dictionary
D.None of the above
E.All of the above
57. Wat gets printed?(D)
list1 = [1, 2, 3, 4]
list2 = [5, 6, 7, 8]
print len(list1 + list2)
A.2
B.4
C.5
D.8
E.An exception is thrown
58. What gets printed?(C)
def addItem(listParam):
listParam += [1]
mylist = [1, 2, 3, 4]
addItem(mylist)
print len(mylist)
A.1
B.4
C.5
D.8
E.An exception is thrown
59. What gets printed?(E)
my_tuple = (1, 2, 3, 4)
my_tuple.append( (5, 6, 7) )
print len(my_tuple)
A.1
B.2
C.5
D.7
E.An exception is thrown
60. What gets printed?(B)
a = 1
b = 2
a,b = b,a
print "%d %d" % (a,b)
A.1 2
B.2 1
C.An exception is thrown
D.This program has undefined behavior
61. What gets printed?(A)
def print_header(str):
print "+++%s+++" % str
print_header.category = 1
print_header.text = "some info"
print_header("%d %s" % \
(print_header.category, print_header.text))
A.+++1 some info+++
B.+++%s+++
C.1
D.some info
62. What gets printed?(C)
def dostuff(param1, *param2):
print type(param2)
dostuff('apples', 'bananas', 'cherry', 'dates')
A.str
B.int
C.tuple
D.list
E.dict
63. What gets printed?（E）
def dostuff(param1, **param2):
print type(param2)
dostuff('capitals', Arizona='Phoenix',
California='Sacramento', Texas='Austin')
A.in
B.str
C.tuple
D.list
E.dict
64. What gets printed?(B)
def myfunc(x, y, z, a):
print x + y
nums = [1, 2, 3, 4]
myfunc(*nums)
A.1
B.3
C.6
D.10
E.An exception is thrown
65. How do you create a package so that the following reference will work?(C)
p = mytools.myparser.MyParser()
A.Declare the myparser package in mytools.py
B.Create an __init__.py in the home dir
C.Inside the mytools dir create a __init__.py
D.Create a myparser.py directory inside the mytools directory
E.This can not be done
66. What gets printed?(E)
class A:
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)
print a.x
A.1
B.2
C.3
D.6
E.7
67. What gets printed?(E)
class NumFactory:
def __init__(self, n):
self.val = n
def timesTwo(self):
self.val *= 2
def plusTwo(self):
self.val += 2
f = NumFactory(2)
for m in dir(f):
mthd = getattr(f,m)
if callable(mthd):
mthd()
print f.val
A.2
B.4
C.6
D.8
E.An exception is thrown
68. What gets printed?(A)
one = chr(104)
two = chr(105)
print "%s%s" % (one, two)
A.hi
B.h
C.Inside the mytools dir create a __init__.py and myparser.py
D.104105
E.104
69. What gets printed?(A)
x = 0
y = 1
a = cmp(x,y)
if a < x:
print "a"
elif a == x:
print "b"
else:
print "c"
A.a
B.b
C.c
70. What gets printed?(C)
x = 1
y = "2"
z = 3
sum = 0
for i in (x,y,z):
if isinstance(i, int):
sum += i
print sum
A.2
B.3
C.4
D.6
E.An exception is thrown
71. What gets printed (with python version 2.X) assuming the user enters the following at the prompt?(D)
#: foo
a = input("#: ")
print a
A.f
B.foo
C.#: foo
D.An exception is thrown
72. What gets printed?(C)
x = sum(range(5))
print x
A.4
B.5
C.10
D.15
E.An exception is thrown
73. If the user types '0' at the prompt what gets printed?(B)
def getinput():
print "0: start"
print "1: stop"
print "2: reset"
x = raw_input("selection: ")
try:
num = int(x)
if num > 2 or num < 0:
return None
return num
except:
return None
num = getinput()
if not num:
print "invalid"
else:
print "valid"
A.valid
B.invalid
C.An exception is thrown
74. What gets printed?(D)
kvps = { '1' : 1, '2' : 2 }
theCopy = kvps
kvps['1'] = 5
sum = kvps['1'] + theCopy['1']
print sum
A.1
B.2
C.7
D.10
E.An exception is thrown
75. What gets printed?(C)
kvps = { '1' : 1, '2' : 2 }
theCopy = kvps.copy()
kvps['1'] = 5
sum = kvps['1'] + theCopy['1']
print sum
A.1
B.2
C.6
D.10
E.An exception is thrown
76. What gets printed(D)
aList = [1,2]
bList = [3,4]
kvps = { '1' : aList, '2' : bList }
theCopy = kvps.copy()
kvps['1'][0] = 5
sum = kvps['1'][0] + theCopy['1'][0]
print sum
A.1
B.2
C.6
D.10
E.An exception is thrown
77. What gets printed?(C)
import copy
aList = [1,2]
bList = [3,4]
kvps = { '1' : aList, '2' : bList }
theCopy = copy.deepcopy(kvps)
kvps['1'][0] = 5
sum = kvps['1'][0] + theCopy['1'][0]
print sum
A.1
B.2
C.6
D.10
E.An exception is thrown
78. What gets printed?(C)
kvps = { '1' : 1, '2' : 2 }
theCopy = dict(kvps)
kvps['1'] = 5
sum = kvps['1'] + theCopy['1']
print sum
A.1
B.2
C.6
D.10
E.An exception is thrown
79. What gets printed?(B)
kvps = { '1' : 1, '2' : 2 , '3' : 3, '4' : 4, '5' : 5}
newData = { '1' : 10, '3' : 30 }
kvps.update(newData)
x = sum(kvps.values())
print x
A.15
B.51
C.150
D.An exception is thrown
80. What gets printed (with python version 3.X) assuming the user enters the following at the prompt?(B)
#: foo
a = input("#: ")
print a
A.f
B.foo
C.Not a number
D.An exception is thrown
