Commodore 128D - Page 275

j i
I 1
GET
i \
EXAMPLE:
10 FOR L =
20 FOR A =
30 NEXT A
40 NEXT L
1 TO 100
5 TO 11 STEP .5
The FOR ... NEXT loop in lines 20 and 30 are nested inside the one
in line 10 and 40. Using a STEP increment of .5 is used to illustrate '
the fact that floating point indices are valid. NEXT variable lists may
be combined. For example,
30 NEXT A, L
could be used in place of lines 30 and 40 above.
—Receive buffered input data from the keyboard, one character at a
time, without waiting for a key to be pressed
GET variable list
The GET statement is a way to receive buffered data from the key
board, one character at a time. When GET is encountered in a pro
gram, the character that is typed is stored in the C128 memory. If no
character is typed, a null (empty) character is returned, and the pro
gram continues without waiting for a key. There is no need to hit the
RETURN key. The word GET is followed by a variable name, either
numeric or string.
If your program specifies a numeric key and a key besides a number
is pressed, the program stops and an error message is displayed.
The GET statement may also be put into a loop, checking for an
empty result. The GETKEY statement could also be used in this
case. See GETKEY for more information. The GET and GETKEY
statements can be executed only within a program.
EXAMPLE:
10 DO:GETA$:LOOP UNTIL A$ = "A"
20 GET B, C,D
This line waits for the A key
to be pressed to continue.
GET numeric variables B,C
and D from the keyboard
buffer without waiting for a
key to be pressed.
267
BASIC 7.0 ENCYCLOPEDIA—Basic Commands and Statements