data score;
input math phy eng;
cards;
87 67 87
78 96 84
95 69 65
;
run;
%macro data;
data temp;
set score;
run;
%mend data;
%macro plot;
proc plot;
plot &math*&phy;
run;
%mend plot;
%macro link(math,phy);
%data
%plot
%mend link;
%link(math,hpy)

为什么这个输不出结果呢？请高手指点指点谢谢啦