通过inflie录入固定文本文件时出现的这种状况，不理解，请求大神帮忙解释下，
. infile ge ag hi co dh dr tv sp ne ah ve pa pi re ab aa ld using D:\Data\as
> signment1.txt, clear
'subj' cannot be read as a number for ge[1]
'ge' cannot be read as a number for ag[1]
'ag' cannot be read as a number for hi[1]
'hi' cannot be read as a number for co[1]
'co' cannot be read as a number for dh[1]
'dh' cannot be read as a number for dr[1]
'dr' cannot be read as a number for tv[1]
'tv' cannot be read as a number for sp[1]
'sp' cannot be read as a number for ne[1]
'ne' cannot be read as a number for ah[1]
'ah' cannot be read as a number for ve[1]
've' cannot be read as a number for pa[1]
'pa' cannot be read as a number for pi[1]
'pi' cannot be read as a number for re[1]
're' cannot be read as a number for ab[1]
'ab' cannot be read as a number for aa[1]
'aa' cannot be read as a number for ld[1]
'ld' cannot be read as a number for ge[2]
(eof not at end of obs)
(33 observations read)