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lesson8-4
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Commit
365c5e0a
authored
Sep 12, 2021
by
BellCodeEditor
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diy.py
diy.py
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365c5e0a
# 神奇百货中的物品已经帮你创建好啦,接下来要看你的了~
# 持家小能手 (利用自动更新成绩程序的逻辑完成这个新项目)
dict
=
{
'可口可乐'
:
3
,
'旺仔牛奶'
:
4
,
'农夫山泉'
:
1
,
'辣条'
:
3
,
'巴西烤肉'
:
2
,
'果冻'
:
4
,
'乐事'
:
5
,
'奥利奥'
:
10
,
'巧克力'
:
6
}
# 如果输入的水果价钱比字典中的低,则替换掉,反之则不更新
while
True
:
cost
=
{
'苹果'
:
5.2
,
'山竹'
:
12.9
,
'香蕉'
:
2.4
,
'荔枝'
:
15
,
'葡萄'
:
9.3
,
'桂圆'
:
8
,
'蓝莓'
:
10
,
'李子'
:
8
}
key
=
input
(
"请输入你想要的食品:"
)
k
=
input
(
'请输入水果名称:'
)
if
key
in
dict
:
v
=
input
(
'请输入水果价钱:'
)
print
(
key
+
"的价格是"
+
str
(
dict
[
key
]))
if
k
in
cost
:
if
float
(
v
)
<
cost
[
k
]:
cost
[
k
]
=
float
(
v
)
print
(
k
+
'降价了,现价'
+
v
+
'元'
)
else
:
else
:
print
(
"你想要的"
+
key
+
"不存在"
)
print
(
k
+
'涨价了,我们不买'
)
\ No newline at end of file
else
:
cost
[
k
]
=
float
(
v
)
print
(
k
+
'的价钱'
+
v
+
'元已上传~'
)
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