In programming, variables are declared by providing it a name and environment it to a value using an equals indication (????. Variables can later on be reassigned to other values.B??c 2: Ch?n ra hình th?c n?p ti?n thích h?p v?i b?n: chuy?n kho?n on the net, ví ?i?n t??Momo, Zalopay, Viettelpay ho?c th??cào mobile. B?m con s??b?n mu?n n?p và nh