新手求比湿平均，出不了图，显示disable error：invalid keyword

里斯斯里

求85E 2003-12年冬季的截面的比湿平均，
gs如下：

'reinit'

'set gxout contour'

'sdfopen e:\s\2003.2.nc'

'set lon 85'

'set lev 1000 1'

i=1

'a=0'

while(i<=59&i>=335)

'define a'i'=q'

'a=a+a'i''

i=i+1

endwhile

'close 1'

'sdfopen e:\s\2004.2.nc'

'set lon 85'

'set lev 1000 1'

i=1

while(i<=60&i>=336)

'define a'i'=q'

'a=a+a'i''

i=i+1

endwhile

'close 1'

'sdfopen e:\s\2005.2.nc'

'set lon 85'

'set lev 1000 1'

i=1

while(i<=59&i>=335)

'define a'i'=q'

'a=a+a'i''

i=i+1

endwhile

'close 1'

'sdfopen e:\s\2006.2.nc'

'set lon 85'

'set lev 1000 1'

i=1

while(i<=59&i>=335)

'define a'i'=q'

'a=a+a'i''

i=i+1

endwhile

'close 1'

'sdfopen e:\s\2007.2.nc'

'set lon 85'

'set lev 1000 1'

i=1

while(i<=59&i>=335)

'define a'i'=q'

'a=a+a'i''

i=i+1

endwhile

'close 1'

'sdfopen e:\s\2008.2.nc'

'set lon 85'

'set lev 1000 1'

i=1

while(i<=60&i>=336)

'define a'i'=q'

'a=a+a'i''

i=i+1

endwhile

'close 1'

'sdfopen e:\s\2009.2.nc'

'set lon 85'

'set lev 1000 1'

i=1

while(i<=59&i>=335)

'define a'i'=q'

'a=a+a'i''

i=i+1

endwhile

'close 1'

'sdfopen e:\s\2010.2.nc'

'set lon 85'

'set lev 1000 1'

i=1

while(i<=59&i>=335)

'define a'i'=q'

'a=a+a'i''

i=i+1

endwhile

'close 1'

'sdfopen e:\s\2011.2.nc'

'set lon 85'

'set lev 1000 1'

i=1

while(i<=59&i>=335)

'define a'i'=q'

'a=a+a'i''

i=i+1

endwhile

'close 1'

'sdfopen e:\s\2012.2.nc'

'set lon 85'

'set lev 1000 1'

i=1

while(i<=60&i>=336)

'define a'i'=q'

'a=a+a'i''

i=i+1

endwhile

'define s=a/543'

'draw title winter-85E'

'printim e:\s\winter-85E.png white'

'disable contour'

'close 1'

里斯斯里

我gs文件出错了，少了‘d s’，
改了之后发现还是不对，图是这样的