多谢
data a1;
do n=1 to 5;
output;
end;
put n=;
run;
观测值:n=1 2 3 4 5
LOG:n=6
data a1;
do n=1 to 5;
output;
put n=;
end;
put n=;
run;
观测值:n=1 2 3 4 5
LOG:n=1 n=2 n=3 n=4 n=5
data a1;
do n=1 to5;
put n=;
end;
put n=;
run;
观测值:n=6
LOG:n=1 n=2 n=3 n=4 n=5