dset d:\tovs\030122.grb
index d:\tovs\030122.grb.idx
undef 9.999E+20
title d:\tovs\030122.grb
* produced by grib2ctl v0.9.12.5p32d
dtype grib 3
options yrev
ydef 181 linear -90.000000 1
xdef 360 linear 0.000000 1.000000
tdef 1 linear 12Z22jan1903 1mo
zdef 1 linear 1 1
vars 1
TOZNEclm 0 10,200,0 ** atmos column Total ozone
ENDVARS
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...
每个文件都有后面的三行广告，我要把后面的三行广告删掉，怎么用批处理做啊？
