正则表达式隔离特定子字符串(Regex to isolate a specific substring)

正则表达式隔离特定子字符串(Regex to isolate a specific substring)

我有一个我从File.ReadAllText检索的字符串：

6 11 rows processed

如您所见，总是有一个整数指定此文档中的行号。 我感兴趣的是它之后的整数和“行处理”字样。 所以在这种情况下，我只对子串“11行处理”感兴趣。

因此，知道每一行将以整数开始，然后是一些空格，我需要能够隔离它后面的整数和“行处理过的”字样并将其自身返回给字符串。

有人告诉我这很容易用Regex，但到目前为止我还没有最微弱的线索如何构建它。

I have this string I have retrieved from a File.ReadAllText:

6 11 rows processed

As you can see there is always an integer specifying the line number in this document. What I am interested in is the integer that comes after it and the words "rows processed". So in this case I am only interested in the substring "11 rows processed".

So, knowing that each line will start with an integer and then some white space, I need to be able to isolate the integer that follows it and the words "rows processed" and return that to a string by itself.

I have been told this is easy to do with Regex, but so far I haven't the faintest clue how to build it.

最满意答案

这应该适合您的需要：

\d+(.*)

这将搜索一个或多个数字（ \d+ ），然后将所有内容放入一个组中：

. = any character * = repeater (zero or more of the preceding value (which is any character in the above () = grouping

但是，杰森是正确的，因为你只需要使用分割功能

This should work for what you need:

\d+(.*)

This searches for 1 or more digits (\d+) and then it puts everything afterwards in a group:

. = any character * = repeater (zero or more of the preceding value (which is any character in the above () = grouping

However, Jason is correct in that you only need to use a split function