hì hì nếu bạn có j ko hiểu tì xem cái này nha https://diendan.hocmai.vn/threads/nhung-dieu-can-biet-danh-cho-thanh-vien-moi.607533/#post-3056607
https://diendan.hocmai.vn/threads/nhung-dieu-can-biet-danh-cho-thanh-vien-moi.607533/#post-3056607