Question

afterTextChanged

我想加入用省略号（...）分隔的行。这是我想用Python做的。长行由新行（\ n）和省略号（...）分隔。我正在逐行读取此文件并对特定行执行某些操作，但继续行以新行（\ n）结束，下一行以省略号（...）开头。因此，我无法完成特定操作。

我所采用的行是来自大文件（超过800行）。 python实用程序解析文件，使用特定关键字搜索行，并用新语法替换行的某些部分。我想对多个文件做这个。

请告诉我。

Answer 1

您可以这样做：

delim = '...'
text = '''This is single line.
          This is second long line
          ... continue from previous line.
          This third single line.
       '''

# here we're building a list containing each line
# we'll clean up the leading and trailing whitespace
# by mapping Python's `str.strip` method onto each
# line
# this gives us:
#
#   ['This is single line.', 'This is second long line', 
#    '... continue from previous line.', 'This third single line.', '']
cleaned_lines = map(str.strip, text.split('\n'))

# next, we'll join our cleaned string on newlines, so we'll get back
# the original string without excess whitespace
# this gives us:
#
#   This is single line.
#   This is second long line
#   ... continue from previous line.
#   This third single line.
cleaned_str = '\n'.join(cleaned_lines)

# now, we'll split on our delimiter '...'
# this gives us:
#
#   ['This is single line.\nThis is second long line\n', 
#    ' continue from previous line.\nThis third single line.\n']
split_str = cleaned_str.split(delim)

# lastly, we'll now strip off trailing whitespace (which includes)
# newlines. Then, we'll join our list together on an empty string
new_str = ''.join(map(str.rstrip, split_str))

print new_str

输出

This is single line.
This is second long line continue from previous line.
This third single line.

Answer 2

您可以在换行符上拆分线，然后循环并将椭圆线添加到上一行，如下所示：

ID

如何在python中加入用省略号（...）分隔的续行

2 个答案: