Commodore 128D - Page 282

INPUT#
When more than one variable is INPUT, separate them 6y commas.
The computer asks for the remaining values by printing two question
marks (??). If the RETURN key is pressed without INPUTting a value,
the INPUT variable retains the value previously input. The INPUT
statement can be executed only within a program.
EXAMPLE:
10 INPUT "PLEASE TYPE A NUMBER";A
20 INPUT "AND YOUR NAME";A$
30 PRINT A$ "YOU TYPED THE NUMBER";A
—Inputs data from a file into the computer's memory
INPUT# file number, variable list
This statement works like INPUT, but takes the data from a previously
OPENed file, usually on a disk or tape instead of the keyboard. No
prompt string is used. This statement can be used only within a pro
gram.
EXAMPLE:
10 OPEN 2,8,2
20 INPUT#2, A$, C, D$
This statement INPUTS the data stored in variables A$, C and D$
from the disk file number 2, which was OPENed in line 10. Each
string must be terminated by a return character, and must be 0-150
characters long (the size of the C128 input buffer).
u
u
LJ
LJ
LJ
LJ
KEY
—Define or list function key assignments
KEY [key number, string]
There are eight function keys (F1-F8) available to the user on the
Commodore 128: four unshifted and four shifted. The Commodore
128 allows you to perform a function or operation for each time the
specified function key is pressed. The definition assigned to a key
can consist of data, or a command or series of commands. KEY with
no parameters specified returns a listing displaying all current KEY
assignments. If data is assigned to a function key, that data is dis
played on the screen when that function key is pressed. The maxi
mum length for all the definitions together is 241 characters.
EXAMPLE:
KEY 7, "GRAPHIC0" + CHR$(13) + "LIST" + CHR$(13)
274
BASIC 7.0 ENCYCLOPEDIA—Basic Commands and Statements