ON nbr GOTO | GOSUB

ON nbr GOTO | GOSUB target[,target, target,…]

ON either branches (GOTO) or calls a subroutine (GOSUB) based on the rounded value of variable; if it is 1, the first target is called, if 2, the second target is called, etc.

Target can be a line number or a label.

See also:
GOSUB
GOTO
RETURN