ON

ON n GOTO|GOSUB label1 [, …, labelN]

Causes a branch of the program to one of the labels label1 to labelN. n defines the number of the label. If n = 1 the first label is used; with n = N the Nth label is used. n must be in the range 0 to 255.

Example 1: ON … GOTO

n = 1       ' Change to 1,2,3 or other value

ON n GOTO label1, label2, label3

print "Nothing happened"

end

label label1
print "Goto label 1"
end

label label2
print "Goto label 2"
end

label label3
print "Goto label 3"
end

Example 2: ON … GOSUB

n = 1       ' Change to 1,2,3 or other value

ON n GOSUB label1, label2, label3

print "After GOSUB"

end

label label1
print "Gosub label 1"
return

label label2
print "Gosub label 2"
return

label label3
print "Gosub label 3"
return

AND AS BAND BG BOR BYREF CALL CASE CATCH CONST DECLARE DEF DO ELIF ELSE ELSEIF END END TRY ENDIF EQV EXIT FALSE FI FOR FUNC GOSUB GOTO IF IFF IMP IN LABEL LET LIKE LOCAL LSHIFT MDL MOD NAND NEXT NOR NOT ON OR REM REPEAT RETURN RSHIFT SELECT STEP STOP SUB THEN THROW TO TRUE TRY UNTIL USE USG USING WEND WHILE XNOR XOR