超市购物消费清单打印的实现

T恤单价为245元
运动鞋为370元
网球拍为345.5元
商场满两件打8折优惠，此次购物共拥有1500元
接下来实现代码

def main():
	T_shirt_money = 245
	sport_shoes_money = 370
	tennis_money = 345.5
	T_shirt_num = int(input('what T_shirt customer get many ?'))
	sport_shoes_num = int(input('what sport_shoes customer get many ?'))
	tennis_num = int(input('what tennis customer get many ?'))

	if (T_shirt_num + sport_shoes_num + tennis_num) >= 2 :
		how_much = T_shirt_num * int(T_shirt_money) + sport_shoes_num * int(sport_shoes_money)+ tennis_num * int(tennis_money)
		end_money = int(how_much * 0.8)
		print('\t\t\t\t\t\t\t********消费单********\t\t\n\t\t\t\t\t\t购买物品\t单价\t个数\t金额\n\t\t\t\t\t\tT恤\t\t${}\t{}\t${}\n\t\t\t\t\t\t网球鞋\t\t${}\t{}\t${}\n\t\t\t\t\t\t网球拍\t\t${}\t{}\t${}\n\n\t\t\t\t\t\t折扣:\t8折\n\t\t\t\t\t\t消费总金额\t${}\t实际缴费  ${}\n\t\t\t\t\t\t找零\t${}'
		.format(int(T_shirt_money),T_shirt_num,T_shirt_num * int(T_shirt_money),
		int(sport_shoes_money),sport_shoes_num,sport_shoes_num * int(sport_shoes_money),
		int(tennis_money),tennis_num,tennis_num * int(tennis_money),end_money,1500,1500 - end_money))
	else:
		how_much = T_shirt_num * int(T_shirt_money) + sport_shoes_num * int(sport_shoes_money)+ tennis_num * int(tennis_money)
		print('\t\t\t\t\t\t\t********消费单********\t\t\n\t\t\t\t\t\t购买物品\t单价\t个数\t金额\n\t\t\t\t\t\tT恤\t\t${}\t{}\t${}\n\t\t\t\t\t\t网球鞋\t\t${}\t{}\t${}\n\t\t\t\t\t\t网球拍\t\t${}\t{}\t${}\n\n\t\t\t\t\t\t消费总金额\t${}\t实际缴费  ${}\n\t\t\t\t\t\t找零\t${}'
		.format(int(T_shirt_money),T_shirt_num,T_shirt_num * int(T_shirt_money),
		int(sport_shoes_money),sport_shoes_num,sport_shoes_num * int(sport_shoes_money),
		int(tennis_money),tennis_num,tennis_num * int(tennis_money),how_much,1500,1500 - how_much))


if __name__ == '__main__':
	main()

写一篇简单的小票实现过程
接下来验证小票是否能够正确打印数据

分别实现了：
1.一件T恤，1双球鞋，一只网球拍，最后打印数据
2.0件T恤，1双球鞋，0只网球拍，最后打印数据