The syntax of this substring is invalid.

Botton

数组赋值，报错
以下为代码

[Fortran] syntaxhighlighter_viewsource syntaxhighlighter_copycode

program main
    implicit none
    CALL QW

    c(1:N,1:N)=a(:,:)
    c(1:N,N+1:2*N)=b(:,:)
    c(N+1:2*N,1:N)=b(:,:)
    c(N+1:2*N,N+1:2*N)=a(:,:)

    write(*,*) c

    end program main



    SUBROUTINE QW
    integer, parameter :: N=4
    integer,dimension(N,N) :: a
    integer,dimension(N,N) :: b
    integer,dimension(2*N,2*N) :: c
    integer :: i,j
    do i=1,N
    do j=1,N
    a(i,j)=1
    end do
    end do

    do i=1,N
    do j=1,N
    b(i,j)=2
    end do
    end do
    END SUBROUTINE QW

以下为错误
1>D:\单相土三维\┐(T.T ) ( T.T) ノ\┐(T.T ) ( T.T) ノ\kk.f90(209): error #6911: The syntax of this substring is invalid.   [C]

li913

主程序中未定义c 。

kyra

请理解，主程序和子程序的变量是独立的。需要共享时，可以通过实参虚参传递。

[Fortran] syntaxhighlighter_viewsource syntaxhighlighter_copycode

program main
  implicit none
  integer, parameter :: N=4
  integer,dimension(N,N) :: a,b    
  integer,dimension(2*N,2*N) :: c
  CALL QW(a,b)
  c(1:N,1:N)=a(:,:)
  c(1:N,N+1:2*N)=b(:,:)
  c(N+1:2*N,1:N)=b(:,:)
  c(N+1:2*N,N+1:2*N)=a(:,:)
  write(*,*) c
contains
  SUBROUTINE QW(a,b)
    integer,dimension(:,:) :: a,b
    a = 1
    b = 2
  END SUBROUTINE QW
end program main

Botton

谢谢大佬，现在已经理解