从命令行将参数传递给可执行文件 [英] Passing arguments to executable from command line

问题描述

我正在尝试从命令行将参数传递给Fortran可执行文件. (在此处摘自)的示例程序是用C实现的. :

I'm trying to pass arguments to a Fortran executable from the command line. A sample program that achieves this in C is (taken from here):

#include <stdio.h>

int main (int argc, char *argv[])
{
  int count;

  printf ("This program was called with \"%s\".\n",argv[0]);

  if (argc > 1)
    {
      for (count = 1; count < argc; count++)
    {
      printf("argv[%d] = %s\n", count, argv[count]);
    }
    }
  else
    {
      printf("The command had no other arguments.\n");
    }

  return 0;
}

该程序的输出为:

This program was called with "./fubar".
argv[1] = a
argv[2] = b
argv[3] = c

我现在的问题是，我该如何在Fortran中编写该程序(以及此功能)?我已经用谷歌搜索了，似乎只有Fortran 2003才具有将参数传递给可执行文件的功能(这是正确的)吗?

My question now is, how would I code this program (and therefore this functionality) in Fortran? I have googled this, and it seems that only Fortran 2003 has the functionality of passing arguments to executables (is this correct)?

推荐答案

供将来参考，正如@High Performance Mark指出的那样，在Fortran 2003中很容易做到这一点.下面的示例代码摘自此处，并说明如何:

For future reference, as @High Performance Mark points out above, it is quite easy to do this in Fortran 2003. The below example code is taken from here and shows how:

      PROGRAM test_get_command_argument
        INTEGER :: i
        CHARACTER(len=32) :: arg

        i = 0
        DO
          CALL get_command_argument(i, arg)
          IF (LEN_TRIM(arg) == 0) EXIT

          WRITE (*,*) TRIM(arg)
          i = i+1
        END DO
      END PROGRAM

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