Example
LINE
INPUT,
"NAME?
";
N$
inputs data from the keyboard and stores it
in
variable N$.
3.
To write data to the file, use the
WRITE#
statement (you can also
use PRINT#, but make sure you delimit the data).
Example
WR
ITE#
1,
N$
writes variable N$ to the file, using buffer 1 (the buffer used to
OPEN the file). Remember that data must go through a buffer
before it can be written to a file.
4.
To ensure that all the data was written to the file, use the CLOSE
statement.
Example
CLOSE 1
closes access to the file, using buffer 1 (the same buffer used to
OPEN the file).
Sample Program
10
OPEN
"0",
1,
"LIST/EMP"
20
LI
NE
INPUT "NAME?
";
N$
30
IF
N$
= "DONE"
THEN
60
1I0 WRITE#
1,
N$
50
PR
I NT:
GOTO
20
60
CLOSE 1
RUN
NOTE: The file "L1ST/EMP" stores the data you input through the
aid of the program, not the program itself (the program
manipulates data). To save the program above, you must assign it
a name using the SAVE command (refer to Chapter 1).
Example
SAI.IE
"PAYROLL"
would save the program under the name "PAYROLL".
NOTE: Every time you modify a program, you must SAVE it again
(you can use the same name); otherwise, the original program
remains on disk, without your latest corrections.
5.
To access data
in
the file, reOPEN it in the
"I"
(input) mode.
Example
OPEN
"I",
1,
"LIST/EMP"
2-52
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