选择一个合适的编译器是非常重要的，而免费编译器有个好处就是你能一个一个的试，看哪个你最喜欢。
It is important to choose a compiler that you are comfortable with, and the free ones have the advantage that you can try them all out and see which one you like best.
流行的各个 Linux 分发版一般包含 GNU 项目的免费 G77 Fortran 编译器副本。
Popular Linux distributions commonly include a copy of the GNU project's free G77 Fortran compiler.
Linux可以在很多硬件上运行，并且具有高质量的编译器和其他软件，例如并行文件系统和MPI实现在Linux上都是免费的。
Linux runs on a wide variety of hardware, and high-quality compilers and other software like parallel filesystems and mpi implementations are freely available for Linux.
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