在 DATA 步骤中创建永久变量标签
data table;
set table;
label variable1 = 'label1'
variable2 = 'label2'
variable3 = 'label3';
run;
data table;
set table;
label variable1 = 'label1'
variable2 = 'label2'
variable3 = 'label3';
run;