Commodore Plus 4 - Page 150

EXAMPLE:
50 IF X>0 THEN PRINT "OK" :ELSE END
Checks the value of
X. If X isgreaterthan
0, the THEN clause
is executed, and the
ELSE clause isn't. If
X is less than 0, the
ELSE clause is exe
cuted and the THEN
clause isn't.
INPUT INPUT \Prompt string;] variable list
The INPUT statement allows the computer to ask for data from the per- —
son running the program and place it into a variable or variables. The
program stops, prints a question mark (?) on the screen, and waits for
the person to type the answer and hit the return . key.
The word iNPUT is followed by a variable name or list of variable —I
names separated by commas. There may be a message inside of
quotes before the list of variables to be input. If this message (called
a prompt) is present, there must be a semicolon (;) after the closing
quote of the prompt. When more than one variable is to be INPUT, they
should be separated by commas when typed in. If not, the computer —
asks for the remaining values by printing two question marks (??). If
you press the RETURNS key without INPUTting a value, the INPUT
variable retains the value previously input for that variable. This state
ment can only be executed within a program.
EXAMPLE:
10 INPUT "PLEASE TYPE A NUMBER11; A
20 INPUT "AND YOUR NAME";AS
30 INPUT B$
40 PRINT' 'BET YOU DIDN'T KNOW WHAT I WANTED!''
INPUT-# INPUT#Me nun / er.variable list
This works like INPUT, but takes the data from a previously OPENed
file or device. No prompt string is allowed. This command can only
be used in program mode.
EXAMPLE:
INPUT#2, A$, C,D$