Contents, cont'd. - Intermec

ON GOTO
Chapter 2 Program Instructions
Field of Application Statement for conditional branching to one of several lines.
Syntax ON GOTO|[,|...]
is a numeric expression that determines which line the
program should branch to.
/ is the number or label of the line, or list of lines, to which the
program should branch.
Remarks This statement is closely related to the ON GOSUB statement. The numeric
expression may result in any positive value. The expression is truncated to an
integer value before the statement is executed. If the resulting value is
negative, 0, or larger than the number of lines, the statement will be ignored.
The value of the numeric expression determines which of the lines the
program should branch to. For example, if the the value of the numeric
expression is 2, the program will branch to the second line in the list.
Examples In this example, different texts will be printed on the screen depending on
which of the keys 1-3 you press on the keyboard of the host.
10 INPUT "PRESS KEY 1-3 ", A%
20 ON A% GOTO 1000,2000,3000
30 END
1000 PRINT "You have pressed key 1"
1010 GOTO 30
2000 PRINT "You have pressed key 2"
2010 GOTO 30
3000 PRINT "You have pressed key 3"
3010 GOTO 30
The same example written without line numbers would look like this:
IMMEDIATE OFF
INPUT "PRESS KEY 1-3 ", A%
ON A% GOSUB QQQ,WWW,ZZZ
YYY: END
QQQ: PRINT "You have pressed key 1"
GOTO YYY
WWW: PRINT "You have pressed key 2"
GOTO YYY
ZZZ: PRINT "You have pressed key 3"
GOTO YYY
IMMEDIATE ON
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