excuse me: how to verify the correctness of the custom stock formula?
for example, the following multi-line content, including assignment, function, and compound calculation:
BOLL:MA (CLOSE,M);
UB:BOLL+2*STD (CLOSE,M);
LB:BOLL-2*STD (CLOSE,M);
if there is an error in the content of the validation, you can return the error location (number of rows and columns) and error type.