Question

在我的任务中，我必须在一个txt文件中写入两个指定单词之间的文本块（以这些单词开头的行）。输入文件如下所示：

SP_LINE
texttexttexttext
texttexttexttext
texttexttexttext
texttexttexttext
texttexttexttext
texttexttexttext
//
NON_SP_LINE
texttexttexttext
texttexttexttext
texttexttexttext
texttexttexttext
texttexttexttext
texttexttexttext
END_NON_LINE
SP_LINE
texttexttexttext
texttexttexttext
texttexttexttext
texttexttexttext
texttexttexttext
texttexttexttext
//

我必须在SP_LINE和＆＃39; //＆＃39;之间写入文件。我试过这个：

import re

fr=open("various.multi").read()
gr=open("locus.txt",'w')

for m in re.finditer("SP_LINE",fr):
    a=int(m.start())
    for n in re.finditer("//", fr[a:]):
        b=int(n.end())
        gr.write(fr[a:b])
gr.close()

但它不起作用

Answer 1

嗯，你可以聪明一点。你实际上说的是你需要删除字符串＆＃39; SP_LINE＆＃39;和＆＃39; //＆＃39;从文件。因此，简化代码就像这样：

import re

gr=open("locus.txt",'w')

for line in open('data.txt'):
    if re.match('SP_LINE|//', line):
        continue
    gr.write(line)
gr.close()

Answer 2

试试这个：

import re

fr=open("various.multi").read()
gr=open("locus.txt",'w')

for m in re.finditer(r"\bSP_LINE\b",fr):
    for n in re.finditer(r"//", fr[m.end():]):
        gr.write(fr[m.start():m.end()+n.end()])
        break
gr.close()

Answer 3

这有用吗？

导入重新

fr=open("various.multi").read()
gr=open("locus.txt",'w')

for m in re.finditer("SP_LINE",fr):
    a = int(m.start())
    b = a + int(re.search("//", fr[a:]).start())
    gr.write(fr[a:b])
gr.close()

将文本块写入文件

3 个答案: