Dear Mingwu,
I'm sorry, there were two other mistakes in the code I suggested:
An * was missing in the read and in the write statement.
The following works (using an f95 compiler):
Program MBAI
character :: file*12, line*80
open(10,file='data.txt')
do i=1,3
write(file,'("data",i0,".txt")') i
open(11,file=file)
do
read(11,*,iostat=ios) line
! This asterisk ^ was missing !
if (ios /= 0) exit
write(10,*) trim(line)
! This asterisk ^ was missing !
end do
close (11)
end do
end
If you do not have an f95 compiler available, you should replace
the statement
write(file,'("data",i0,".txt")') i
by the following two statements:
write(file,'(i6)') i
file='data'//trim(adjustl(file))//'.txt'
I tested both versions with your test data sets. The above
program should also work with any number of columns in the
data input files, as long as the line length does not exceed
80 characters. If this is the case you would have to increase
the character length in the 'line' declaration appropriately.
Good luck.
Roland
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