%LOCAL secrete

When programming, we always put the %LOCAL and %GLOBAL statement at the top of macro definition.

Why?
In this way, we can guarant that same LOCAL/GLOBAL mv is always in effect in macro execution. If %LOCAL is in the middle, the global mv is probably in use.

*%LOCAL secrete sample;
%let test = global;
%macro test();
  %put Before %nrstr(%local): "&test";

  %local test;
  %put After %nrstr(%local): "&test";
%mend;

%test()