python

>>> list1 = ['a', 'b', 'c']

>>> list2 = list1

>>> list1.append('de')

>>> print(list2)

print(d.get(4, 'a'))

问：最后输出的是？

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

print(len(nums))

python

if 2:

    print(5)

else:

    print(6)

a = "watermelon"

b = "strawberry"

c = "cherry"

if a > b:

    c = a

    a = b

    b = c

a = "watermelon"

b = "strawberry"

c = "cherry"

if a > b:

    c = a

    a = b

    b = c

python

for i in range(1, 10, 2):

    if i % 5 == 0:

        print("bingo!")

        break

else:

    print(i)

>>> s = {}

>>> type(s)

d['Sex'] = 'male'

d['name'] = 'yyy'

print(d)

结果是____ 

st[0][1] = 'd'

print(len(st), st)

结果是____ 

s = input("请输入一个字符串： ")

________

while i >= 0:

    print(s[i], end="")

    i = i - 1