Count For ALLTRIM((str(grade)))="A+" To dis5

What are the possible values of "grade" in your line? There is no equivalent numeric value to "A+" that you would use STR to convert that I'm aware of.

Problem is this. I am counting the grading from a class(school class) How many students have A+,or B+ in the class.
But When i am using +A,+B. with these codes
Count For Alltrim(grade)="+A" To dis5
no any problem.

Count For Alltrim(grade)="A+" To dis5 ( using these codes i cannot count the grade.