5 -7 喜欢的水果：
favorite_fruits
=
[
"
apple
",
"
banana
",
"
orange
",
"
watermelon
",
"
strawberry
"
]
if
"
apple
"
in favorite_fruits:
print
(
"
You realy like apples!
"
)
if
"
banana
"
in favorite_fruits:
print
(
"
You realy like bananas!
"
)
if
"
orange
"
in favorite_fruits:
print
(
"
You realy like oranges!
"
)
if
"
watermelon
"
in favorite_fruits:
print
(
"
You realy like watermelons!
"
)
if
"
strawberry
"
in favorite_fruits:
print
(
"
You realy like strawberries!
"
)
输出结果：
5-8 以特殊方式跟管理员问候：
Users
=
[
"
admin
",
"
bird
",
"
cat
",
"
dog
",
"
elephant
"
]
for user
in Users:
if user
==
"
admin
":
print
(
"
Hello
"
+
user
+
"
,would you like to see a status report?
"
)
else:
print
(
"
Hello
"
+
user
+
"
,thank you for logging in again
"
)
输出结果：
5 - 11 序数：
l
=
[
"
1
",
'
2
',
'
3
',
'
4
',
'
5
',
'
6
',
'
7
',
'
8
',
'
9
'
]
for num
in l:
if num
==
'
1
':
print
(num
+
'
st
'
)
elif num
==
'
2
':
print
(num
+
'
nd
'
)
elif num
==
'
3
':
print
(num
+
'
rd
'
)
else:
print
(num
+
'
th
'
)
输出结果：