我也仔细看过程序了,并且也在我的机器上运行了,的确没有问题。
[quote:2enj8u5w]1 data a;
2 x='good ';
3 y='morning';
4 z=x||y;
5 put z=;
6 run;
z=good morning
NOTE: The data set WORK.A has 1 observations and 3 variables.
NOTE: DATA statement used (Total process time):
real time 0.42 seconds
cpu time 0.04 seconds[/quote:2enj8u5w]