data  ex;
input year water;
cards;
1999         8.08
2000         7.53
2001         7.42
2002         7.64
2003         7.85
2004         7.80
2005         9.30
2006         8.90
2007         9.71
2008         9.67
2009         9.49
2010         8.17
2011         10.05
2012         8.95
;
run;


/*gplot*/
symbol i=join v=square c=red pointlabel=("#water");
proc gplot data=ex;
title "水分变化趋势";
plot water*year/hminor=0 autovref;
run;
goptions reset=all;

/*sgplot*/
proc sgplot data=ex;
title "水分变化趋势";
scatter x=year y=water/markerattrs=(symbol=squarefilled size=10 color=red);
series x=year y=water/datalabel=water ;
xaxis values=(1999 to 2012 by 1);
yaxis grid;
run;

多谢大侠！！！学习了！！！！