wrmdcxy查看:57 回复:14 评论:57 创建时间:2020-02-24T14:23:35用户:
最近非常无聊，每天都是逛逛论坛，看看代码岛，实在太无聊了…………
可是，我又能怎么样？网站都爬遍了……
我本想搞一喵的，却因为个人水平有限，无法坚持下去
我又想搞个函数包，却没有灵感……
马上就要开学了，我希望能在这最后几天搞到什么有趣的、奇妙的……
谁能提供一下灵感？谢谢咯
或者，你也有相似的情况，可以在下面举爪
，咱们一起想想做些神马……
(附:本人只会Python
。如果你是JS,C,C++......的大佬，请不要用其它编程语言评论，谢谢合作
)
wrmdcxy代码：
def deleteLinesbyContents(path,contents,encoding='utf-8'):
from Errors import FindError
import time
try:
with open(path,'r',encoding=encoding) as file1:
file=''
for x in file1:
file+=x
lines=file.splitlines()
lineNumber=1
line='j'
while line!='':
line=file1.readline()
print(line)
time.sleep(3)
if line==contents:
isFind=0
break
elif line.strip()=='':
print('BlankLine')
continue
else:
print(lineNumber)
lineNumber+=1
print(line=='')
time.sleep(3)
try:
isFind+=1
except UnboundLocalError:
file1.close()
raise FindError('There is no "%s" in this file'%(str(contents)))
del lines[lineNumber-1]
file1.close()
with open(path,'w',encoding=encoding) as file1:
for x in lines:
file1.write(str(x)+'\n')
file1.close()
except Exception as e:
raise e
deleteLinesbyContents('F:\\ll.txt','DEl')文件内容：
look!
There!
delete!
ready!
This is delete
go!
DEl
DEL
DEl!!!!运行结果：
Traceback (most recent call last):
File "G:\AllFunctions\FileProcessing.py", line 174, in <module>
deleteLinesbyContents('F:\\ll.txt','DEl')
File "G:\AllFunctions\FileProcessing.py", line 172, in deleteLinesbyContents
raise e
File "G:\AllFunctions\FileProcessing.py", line 144, in deleteLinesbyContents
isFind
UnboundLocalError: local variable 'isFind' referenced before assignment就这样，不要在意颜色
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wrmdcxy问题已解决，最终代码为：
def deleteLinesbyContents(path,contents,encoding='utf-8'):
from Errors import FindError
try:
with open(path,'r',encoding=encoding) as file1:
file=''
for x in file1:
file+=x
lines=file.splitlines()
lineNumber=1
file1.seek(0,2)
size=file1.tell()
file1.seek(0,0)
sizeNow=file1.tell()
while sizeNow<size:
line=(file1.readline()).strip()
sizeNow=file1.tell()
if line==contents:
isFind=0
break
elif line.strip()=='':
continue
else:
lineNumber+=1
try:
isFind+=1
except UnboundLocalError:
file1.close()
raise FindError('There is no "%s" in this file'%(str(contents)))
del lines[lineNumber-1]
file1.close()
with open(path,'w',encoding=encoding) as file1:
for x in lines:
file1.write(str(x)+'\n')
file1.close()
except Exception as e:
raise e
deleteLinesbyContents('F:\\ll.txt','This is delete')文件内容：
look!
There!
delete!
ready!
This is delete
go!
DEl
DEL
DEl!!!!运行结果：
[Finished in 0.4s]运行后文件内容：
look!
There!
delete!
ready!
go!
DEl
DEL
DEl!!!!点赞0
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