Python常见面试题（三）

1.a与b定义如下，下列哪个是正确的？  B
a = '123'
b = '123'
A.a != b
B.a is b
C.a == 123
D.a + b = 246

2.下列哪种函式参数定义不合法?  D
A.def myfunc(*args):
B.def myfunc(arg1=1):
C.def myfunc(*args, a=1):
D.def myfunc(a=1, **args): //只能有一个关键字参数

3.下列代码执行结果是？  B
[i**i for i in range(3)]
A.[1, 1, 4]
B.[0, 1, 4]
C.[1, 2, 3]
D.(1, 1, 4)

4.一个段代码定义如下，下列调用结果正确的是？  A
def bar(multiple):
?  def foo(n):
????return multiple ** n
??return foo
A.??bar(2)(3) == 8
B.??bar(2)(3) == 6
C.??bar(3)(2) == 8
D.??bar(3)(2) == 6

5.下面代码运行结果？  C
a = 1
try:
??a += 1
except:
??a += 1
else:
??a += 1
finally:
??a += 1
print(a)
A.2
B.3
C.4
D.5