oracle存储过程怎么调用带输出参数的函数

delcarerin varchar2(100);rout varchar2(100);re number;--假设的你的函数返回此类型begin re := aa(rin,rout); dbms_output.put_line(rout);end;/
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探讨

如题，有一个函数function aa(ain varchar2,b out varchar2)
想在存储过程中调用该函数，并输出该函数的输出参数b，应该如何写？

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举例：
SQL> create or replace procedure p is
 2  c varchar2(100);
 3  begin
 4  c := aa('ACCOUNTING',c);
 5  dbms_output.put_line(c);
 6  end;
 7  /
  
Procedure created
SQL> create or replace function aa(a in varchar2,b out varchar2)
 2  return varchar2 is
 3  begin
 4  select LOC into b from dept where dname = a;
 5  return b;
 6  end;
 7  /
  
Function created
  
SQL> exec p;
  
NEW YORK
  
PL/SQL procedure successfully completed