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add an option to close all files

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This commit is contained in:
Jim Saxton
2017-07-07 13:37:44 -07:00
parent 8bf19814bc
commit 20854fc3b0
2 changed files with 23 additions and 3 deletions
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14
yab-IDE/data/Help_En.dat
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@@ -3210,19 +3210,27 @@ close -- close a file, which has been opened before
Synopsis:
close filenum
close # filenum
close # filenum
close -2
close #-2
Description:
The close-command closes an open file. You should issue this command as soon as you are done with reading from or writing to a file.
close -2 closes all open files.
Example:
all = -2
open "my.data" for reading as 1
input #1 a
print a
close 1
close all
Explanation:
This program opens the file "my.data", reads a number from it, prints this number and closes the file again.
This program opens the file "my.data", reads a number from it, prints this number and then closes all files.
Related: open