i wanna input data which is txt or dat file. i dont do this. i saw a few example in internet but i dont this.
in instance input data file
how fortran can read this data do you know, help me
You're asking a very basic question that is covered in many books and also, many tutorials on the web. I suggest you start with the Fortran Wiki page - http://fortranwiki.org/fortran/show/HomePage - which gives tons of useful information and links on all aspects of Fortran including file input and output.
i know very basic question otherwise i search but i didnt do