data a;
input a @@;
cards;
12.3 12.5 12.8 11.6 11.3 12.4 12 12.7 11.5 11.2 11.3 11.7 11.5 11.9 12.4 12.5 12.6 12.9 13.0 12.4;
run;
以上程序,为什么显示error哪?