Question

我已经看过几个如何显示行数的例子，并尝试在我的代码中实现这些，但是没有成功。我是一个Python新手，所以我想我还有更多需要学习的东西。有人可以告诉我如何显示文件中找到的匹配的行数，谢谢？

elif searchType =='3':
      print "Directory to be searched: c:\SQA_log "
      print " "
      directory = os.path.join("c:\\","SQA_log")

      regex = re.compile(r'(?:3\d){6}')
      for root,dirname, files in os.walk(directory):
         for file in files:
           if file.endswith(".log") or file.endswith(".txt"):
              f=open(os.path.join(root,file))
              for line in f.readlines():
                  searchedstr = regex.findall(line)
                  for word in searchedstr:
                     print "String found: " + word
                     print "File: " + os.path.join(root,file)
                     break
                     f.close()

Answer 1

好吧，我假设你也想输出行号。为此，你会这样做：

  regex = re.compile(r'(?:3\d){6}')
  for root,dirname, files in os.walk(directory):
     for file in files:
       if file.endswith(".log") or file.endswith(".txt"):
          f=open(os.path.join(root,file))
          for i, line in enumerate(f.readlines()):
              searchedstr = regex.findall(line)
              for word in searchedstr:
                 print "String found: " + word
                 print "Line: "+str(i)
                 print "File: " + os.path.join(root,file)
                 break
          f.close()

Answer 2

见http://docs.python.org/library/functions.html#enumerate。使用迭代线更改循环，如下所示：

for i,line in enumerate(f.readlines()):

我将保留行号

如何显示找到正则表达式匹配的行数

2 个答案: