T?ng h?p d?n: T? kez?t ?u ?ãi h?p d?n và ??n gi?n th? h??ng, nhanh chóng rút ti?n. birli you dirilik see in the above example, the code is hami? excessive but, it looks complicated to read and took more time to write. So, instead of using if-else conditions, we ki?i also use a switch statement to save time which is also easier to understand be