从notepad++版本6开始，你可以在搜索和替换对话框中使用这个正则表达式:

^(.*?)$\s+?^(?=.*^\1$)

什么都不替换。这将在所有重复行中留下文件中最后一次出现的内容。

不需要排序，重复的行可以在文件中的任何地方!

您需要勾选“正则表达式”和“正则表达式”选项。匹配换行符”:

^ matches the start of the line. (.*?) matches any characters 0 or more times, but as few as possible (It matches exactly on row, this is needed because of the ". matches newline" option). The matched row is stored, because of the brackets around and accessible using \1 $ matches the end of the line. \s+?^ this part matches all whitespace characters (newlines!) till the start of the next row ==> This removes the newlines after the matched row, so that no empty row is there after the replacement. (?=.*^\1$) this is a positive lookahead assertion. This is the important part in this regex, a row is only matched (and removed), when there is exactly the same row following somewhere else in the file.

到目前为止，使用记事本内置功能可以删除所有连续重复的行。首先对行进行排序:

编辑>行操作>“按字典顺序排序”，

then

编辑>线路操作>“删除连续重复线路”。

上面建议的正则表达式解决方案并没有为我删除所有重复的行，而是只删除了连续的行。

没有一个对我有效。

解决方案是:

取代

^(.*)\s+(\r?\n\1\s+)+$

with

\1

如果行是紧挨着的，那么你可以使用正则表达式替换:

搜索模式:^(.*\r?\n)(\1)+

替换为:\1

notepad++有内置操作:

Edit -> Line Operations -> Sort Lines...
Edit -> Line Operations -> Remove Duplicate Lines

也许它只适用于删除重复行，但我需要通过看到排序工作来看到操作工作。

如果它不工作，问题可能是不同的结束线，我现在遇到的。您可以通过查看->显示符号->显示行结束来检查。 把它替换成相同的。

Click on Search > Replace (or Ctrl + H)
Find what:  \r\n
Replace with: \n
Search Mode: select Extended (\n, \r,...)
Replace All

从notepad++版本6开始，你可以在搜索和替换对话框中使用这个正则表达式:

^(.*?)$\s+?^(?=.*^\1$)

什么都不替换。这将在所有重复行中留下文件中最后一次出现的内容。

不需要排序，重复的行可以在文件中的任何地方!

您需要勾选“正则表达式”和“正则表达式”选项。匹配换行符”:

^ matches the start of the line. (.*?) matches any characters 0 or more times, but as few as possible (It matches exactly on row, this is needed because of the ". matches newline" option). The matched row is stored, because of the brackets around and accessible using \1 $ matches the end of the line. \s+?^ this part matches all whitespace characters (newlines!) till the start of the next row ==> This removes the newlines after the matched row, so that no empty row is there after the replacement. (?=.*^\1$) this is a positive lookahead assertion. This is the important part in this regex, a row is only matched (and removed), when there is exactly the same row following somewhere else in the file.