Special characters encountered when using split for segmentation

When split is used:

Let's take a look at the usage of split:

You can see that the parameter in split is a regular expression. There are some special characters in the regular expression, which have their own usage:

http://www.fon.hum.uva.nl/praat/manual/Regular_expressions_1__Special_characters.html

The solution of the above method is to use escape to split:

Summary:

Pay attention to the escape of special characters when performing regular operations on strings.