data answer;
do i=1 to 10 by 0.1;/*不写by，默认增加1*/
output;/*output也可以不写，那结果就只输出最后一行的observation.写了output就可以输出每增加0.1的观测值*/
end;
run;
proc print data=answer;
run;

data test;
do i=1 to 2 by 0.1;
output;
end;
run;