求助 判断某个word是否存在variable中

shiyiming

data aaa;
input x$;
cards;
height
weight
;
run;

%let var=height; 如果数据集中aaa中x的值含&var，%put 存在;
%let var=heigh;  如果数据集中aaa中x的值不含&var，%put 不存在;
谢谢！

shiyiming

%let var = height ;
data aaa;
   input x$;
   if indexw(x, "&var") then put x = ;
cards;
height
weight
;
run;