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lesson8-5
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Commit
da3c1a0f
authored
a year ago
by
BellCodeEditor
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diy.py
diy.py
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da3c1a0f
# 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)
# 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
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
}
k
=
input
(
'请输入水果名称:'
)
v
=
input
(
'请输入水果价钱:'
)
# ?补充条件判断:
if
# ?:
# ?更新价钱
print
(
k
+
'降价了,现价'
+
v
+
'元'
)
else
:
print
(
k
+
'涨价了,我们不买'
)
else
:
cost
[
k
]
=
float
(
v
)
print
(
k
+
'的价钱'
+
v
+
'元已上传~'
)
sores
=
(
'语文'
:
89
,
'数学'
:
95
,
'英语'
:
80
)
def
get_average
(
scores
):
sum
score
=
0
for
subject
,
score
in
scores
.
item
():
sum
score
+=
score
print
(
'现在的总分是
%
d'
%
sum_score
)
ave_score
=
sum_score
/
len
(
scores
)
print
(
'平最分是
%
d'
%
ave_score
)
get_average
(
scores
)
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