没太明白楼主的意思，但是下面的程序，可以将数据输入到数据集中
data a;
input ProdId $ Price ProductType $ Sales Returns;
datalines;
K12S 95.50 OUTDOOR 15 2
B132S 2.99 CLOTHING 300 10
R18KY2 51.99 EQUIPMENT 25 5
3KL8BY 6.39 OUTDOOR 125 15
DY65DW 5.60 OUTDOOR 45 5
DGTY23 34.55 EQUIPMENT 67 2
;
proc print data=a;
run;
运行结果如下：
Obs ProdId Price ProductType Sales Returns
1 K12S 95.50 OUTDOOR 15 2
2 B132S 2.99 CLOTHING 300 10
3 R18KY2 51.99 EQUIPMEN 25 5
4 3KL8BY 6.39 OUTDOOR 125 15
5 DY65DW 5.60 OUTDOOR 45 5
6 DGTY23 34.55 EQUIPMEN 67 2

你这个不对吧

是直接输入到数据集吗，还是从一个文本文件里读取啊

data aa;
length prodid  $20. Price 6.2 ProductType $20. Sales 8. Returns 8.;
input ProdId  Price ProductType  Sales Returns;
cards;
K12S 95.50 OUTDOOR 15 2
B132S 2.99 CLOTHING 300 10
R18KY2 51.99 EQUIPMENT 25 5
3KL8BY 6.39 OUTDOOR 125 15
DY65DW 5.60 OUTDOOR 45 5
DGTY23 34.55 EQUIPMENT 67 2
;
run;