wps/excel regular expression to extract numbers

I originally wanted to use Python and use regular expressions to process data, but considering that business personnel do not know how to use Python,

• The first method is to prepare to use the formula in excel for processing

When using it, I found that the business personnel used wps, and some formulas in the original Microsoft were not in wps

• Therefore, the following method 2 is used in a detour: nesting of multiple formulas
  

The specific formula is as follows:

=LOOKUP(9^9,--LEFT(SUBSTITUTE(A2,LEFTB(A2,SEARCHB("?",A2)-1),""),ROW($2:$6)))