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lesson8-5
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Commit
3fc56629
authored
a year ago
by
BellCodeEditor
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diy.py
diy.py
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3fc56629
# 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)
weather
=
{
'北京'
:
8
,
'上海'
:
15
,
'广州'
:
20
,
'深圳'
:
21
}
# 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
data
=
weather
.
pop
(
"北京"
)
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
}
print
(
data
)
k
=
input
(
'请输入水果名称:'
)
print
(
weather
)
v
=
input
(
'请输入水果价钱:'
)
if
k
in
cost
:
if
float
(
v
)
<
cost
[
k
]:
cost
[
k
]
=
v
print
(
k
+
'降价了,现价'
+
v
+
'元'
)
else
:
print
(
k
+
'涨价了,我们不买'
)
else
:
cost
[
k
]
=
v
print
(
k
+
'的价钱'
,
v
,
'元已上传~'
)
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