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lesson12-4
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Commit
257ada0e
authored
3 years ago
by
BellCodeEditor
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diy.py
diy.py
View file @
257ada0e
a
=
open
(
r"C:\Users\Admin\Desktop\text.txt"
,
'w'
,
encoding
=
'utf-8'
)
a
.
write
(
'小兰:12'
)
a
.
close
()
#with open(r"C:\Users\Admin\Desktop\text.txt",'a',encoding='utf-8') as a:
# a.write('小兰:12\n')
with
open
(
r"C:\Users\Admin\Desktop\text.txt"
,
'r'
,
encoding
=
'utf-8'
)
as
a
:
f
=
a
.
read
()
new_f
=
''
for
i
in
f
:
if
'小兰:12'
in
f
:
f
=
f
.
replace
(
'小兰:12'
,
'小兰:10'
)
new_f
+=
f
print
(
new_f
)
with
open
(
r"C:\Users\Admin\Desktop\text.txt"
,
'w'
,
encoding
=
'utf-8'
)
as
a
:
a
.
write
(
new_f
)
\ No newline at end of file
bros
=
[
"刘备"
,
"关羽"
,
"张飞"
]
bros
[
0
]
=
"关羽"
bros
[
1
]
=
"刘备"
print
(
bros
)
# a=['华雄']
# b=['袁术','夏侯惇','曹操','关羽']
# b.pop('')
\ No newline at end of file
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