PL/SQL的游标

declare 
  v_xing student.studentname%type:='王';
  cursor stus is
         select * from student where studentname like v_xing||'%';
  v_stuobj student%rowtype;   
begin
  open stus;
  loop
   fetch stus into v_stuobj;
   exit when stus%notfound;
   dbms_output.put_line('学号：'||v_stuobj.studentno);
   dbms_output.put_line('性别：'||v_stuobj.sex);
   dbms_output.put_line('地址：'||v_stuobj.address);
   dbms_output.put_line('电话：'||v_stuobj.phone);
   dbms_output.put_line('电邮：'||v_stuobj.email); 
   dbms_output.put_line('--------------------------'); 
  end loop;
  close stus;
end;