1. If a is defined as an integer: a: Integer.

If (a>= 1) and (a & lt=5) then

B: =' C'

other

b:=“”；

Second, if a is defined as the character type a: Char.

If a is in [' 1',' 2',' 3',' 4',' 5'], then

B: =' C'

other

b:=“”；