Python练习:小程序,列车出票程序

# 需求:列车某结车厢座位有15行,5列,初始状态均为'有票',当乘客选了座次,下单后,变更为'已售'

# 下单时,要显示所有座位的状态(有票or已售)

# 下单完毕后,显示下单后的座位状态.

line_list = [x for x in range(1,16)]   # 行数row_list = [x for x in range(1,6)]  #列数place_list = []  #存放座位号for x in line_list:    for y in row_list:        place_list.append(str(x)+'-'+str(y))place_dict = { x:'有票' for x in place_list}  # 座位状态(有票 or 已售)def show(dict):  # 显示座位状态的函数    i = 0    for key,value in dict.items():        print(key,'_',value,end=',')        i += 1        if i%5 == 0:            print('\n')

def buy(place_dict,place_num):  # 购买座位的函数    place_dict[place_num] = '已售'    print(place_dict[place_num],'\n购买成功')

if __name__ == '__main__':    show(place_dict)    buy_num = input("请输入购买的座位号(格式:行号-列号):")    while buy_num not in place_list:        print("您输入的座位号不存在")        buy_num = input("请重新输入购买的座位号:")    buy(place_dict,buy_num)    print("座位状态")    show(place_dict)