报错run-time error F6103: Read(D:\grads\year\1987\1987P01.dat) invalid real

wushouzeng

这个错求大神解决啊

program main
implicit none
integer,parameter::dy=365,nfile=16
real,parameter::a=28.5,b=23.5,c=33.5
real,dimension(nfile,dy)::var
real,dimension(dy)::u,v,g,m,n,h
integer x,y,l

character*200 filename

open(11,file='D:\grads\Year\1987\input.txt',access='sequential',status='old')
do 10 x=1,nfile,1
        read(11,*) filename
        open(12,file=filename,access='sequential',status='old')
        read(12,*) (var(x,y),y = 1,dy)
!        print *,var       
10 continue
close(12)
close(11)
end program main