Commodore 1581 - More About INPUT#

FORMAT FOR THE INPUT# STATEMENT
INPUT#file #,variable list
where "file #" is the same file number given in the desired file's cur
rent OPEN statement, and "variable list" is one or more valid BASIC
variable names. If more than one data element is to be input by a par
ticular INPUT# statement, each variable name must be separated from
others by a comma.
EXAMPLES:
To read back in the grades written with the PRINT# example, use:
300 FOR CLASS = 1 TO COURSES
310 INPUT#1,GRADE$(CLASS)
320 GOSUB 59990:REM CHECK FOR DISK ERRORS
330 NEXT CLASS
assuming your program includes an error check subroutine like the
one in the last chapter.
To read back in the address data written by another PRINT# ex
ample, it is safest to use:
800 INPUT#5,NAME$
810 GOSUB 59990:REM CHECK FOR DISK ERRORS
820 INPUT#5,STREET$
830 GOSUB 59990:REM CHECK FOR DISK ERRORS
840 INPUT#5,CITY$
850 GOSUB 59990:REM CHECK FOR DISK ERRORS
but many programs cheat on safety a bit and use
800 INPUT#5,NAME$,STREET$,CITY$
810 GOSUB 59990:REM CHECK FOR DISK ERRORS
This is done primarily when top speed in the program is essential, and
there is little risk of reading improper data from the file.
MORE ABOUT INPUT#
After you begin using data files regularly, you may encounter two
BASIC error messages. They are "STRING TOO LONG ERROR" and
"FILE DATA ERROR". Both are likely to halt your program at an
45