Page 283 - Learn to Program - Basic-256

Chapter 18: Files – Storing Information For Later. Page 267

seek expression
seek(expression)
seek filenumber,expression
seek (filenumber,expression)

Move the file pointer for the next read or write operation to a
specific location in the file. To move the current pointer to the
beginning of the file use the value zero (0). To seek to the end of
a file use the size() function as the argument to the see
statement.

If filenumber is not specified then file number zero (0) will be
used.

writeline expression
writeline(expression)
writeline filenumber,expression
writeline (filenumber,expression)

Output the contents of the expression to an open file and then
append an end of line mark to the data. The file pointer will be
positioned at the end of the write so that the next write statement
will directly follow.

If filenumber is not specified then file number zero (0) will be
used.

1 # appendwrite.kbs
2 # append new lines on the end of a file
3 # then display it
4
5 open "appendwrite.dat"
6
7 print "enter a blank line to close file"

© 2019 James M. Reneau (CC BY-NC-SA 3.0 US)