wwd1015 发表于 2012-9-20 22:04 
remove the "=" in keep=ttwd1 sdz1; It's a error.
If you want to remove the labels in data set, ...
Thanks very much.But I have to ask you another question.
The following codes run successfully,but the 'attrid' is in red colour,why?Are they right?The log does't show any error.
proc datasets lib=work memtype=data;
modify temp1 ;
attrib ttwd label='ttwd ' sdz label='sdz';
run;