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lesson12-3
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Commit
52848083
authored
Oct 22, 2020
by
BellCodeEditor
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2 changed files
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17 additions
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13 deletions
C:\Users\CM\Desktop\book.txt
diy.py
C:\Users\CM\Desktop\book.txt
View file @
52848083
小兰:12
本
小兰:12
本
...
@@ -2,3 +2,11 @@
...
@@ -2,3 +2,11 @@
小丽:11本
小丽:11本
李文:9本
李文:9本
张伟:16本
张伟:16本
小强:10本
李明:15本
小强:10本
李明:15本
小强:10本
李明:15本
小强:10本
李明:15本
diy.py
View file @
52848083
# 写入同学们的捐赠明细:'小兰:12本'、'小丽:11本'、'李文:9本'、'张伟:16本'
# 完成修改数据前的遍历和条件判断,找下'小强:10本'在不在数据中,以及小兰的数据'小兰:12本'在不在
# 写入同学们的捐赠明细:'小兰:12本'、'小丽:11本'、'李文:9本'、'张伟:16本'
with
open
(
r'C:\Users\CM\Desktop\book.txt'
,
'r'
,
encoding
=
'utf-8'
)
as
file1
:
# 打开、创建文件,这里的路径要换成自己哦~
for
data
in
file1
:
file1
=
open
(
r'C:\Users\CM\Desktop\book.txt'
,
'w'
,
encoding
=
'utf-8'
)
if
'小强:10本'
in
data
:
# 写入数据
print
(
'小强数据在文件中'
)
file1
.
write
(
'小兰:12本
\n
'
)
if
'小兰:12本'
in
data
:
file1
.
write
(
'小丽:11本
\n
'
)
print
(
'小兰数据在文件中'
)
file1
.
write
(
'李文:9本
\n
'
)
\ No newline at end of file
file1
.
write
(
'张伟:16本
\n
'
)
# 关闭文件
file1
.
close
()
\ No newline at end of file
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