这道作业遇到问题了，求大佬帮忙

Question

Answer 1

delimiter //
create procedure insrt20 ()
begin
declare i int default 1;
while i <=20 do
insert into stuinfo (stuid, stuname, stusex) values (i,'aaa', 'male');
set i=i+2;
end while;
end
//
delimiter ;