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lesson13_2
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Commit
23a55cf2
authored
Jun 21, 2022
by
BellCodeEditor
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18 additions
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4 deletions
111.py
33.py
111.py
View file @
23a55cf2
# 在diy1的基础上选一种打开方式,建议选with open() as
with
open
(
r'C:\Users\Administrator\Desktop\ab.txt'
,
'r'
,
encoding
=
'utf-8'
)
as
file
:
with
open
(
r'C:\Users\Administrator\Desktop\ab.txt'
,
'r'
,
encoding
=
'utf-8'
)
as
file
:
a
=
file
.
readlines
()
a
=
file
.
readlines
()
print
(
a
)
for
i
in
a
:
for
i
in
a
:
print
(
i
)
b
=
i
.
split
()
\ No newline at end of file
print
(
b
[
1
:])
33.py
0 → 100644
View file @
23a55cf2
with
open
(
r'C:\Users\Administrator\Desktop\ab.txt'
,
'r'
,
encoding
=
'utf-8'
)
as
file
:
a
=
file
.
readlines
()
final_sum
=
[]
for
i
in
a
:
#用for...in...把每一行的数据遍历
data
=
i
.
split
()
#把字符串切分成更细的一个个的字符串
sum
=
0
#先把总钱数设为0
for
sales
in
data
[
1
:]:
#遍历列表中第1个数据和之后的数据
sum
=
sum
+
int
(
sales
)
#然后依次加起来,但sales是字符串,所以要转换
result
=
data
[
0
]
+
str
(
sum
)
+
'
\n
'
#结果就是学生姓名和总义卖款,后面加上换行符,写入的时候更清晰
final_sum
.
append
(
result
)
#每次把结果都补充到列表中
# 这里写入文件的时候,注意命名一个新的文件名哦
with
open
(
r'C:\Users\Administrator\Desktop\ab.txt'
,
'a'
,
encoding
=
'utf-8'
)
as
file
:
file
.
writelines
(
final_sum
)
\ No newline at end of file
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