订餐管理系统

给出了一个订餐菜单，用户选择需要的食物，给出付款总额，记录订单并保存到文件 1,"大米饭",1.0, 2,"冷面",3.0, 3,"兰州拉面",5, 4,"刀削面",5, 5,"菜粥",0.5, 6,"南瓜粥",1, 7,"糯米粥",1, 8,"黑米粥",1, 9,"燕麦粥",1, 10,"红烧肉",3, 11,"红烧鱼",5, 12,"北京烤鸭",10, 13,"啤酒鸭",6, 14,"猪肚",8, 15,"牛肉",15, 16,"青菜",0.8, 17,"白菜",1, 18,"韭菜",1, 19,"常豆",1.5, 20,"扁豆",1.5, 21,"豌豆",1.6, 22,"丝瓜",1, 23,"黄瓜",1.5, 24,"排骨汤",5, 25,"鲫鱼汤",6, 26,"番茄蛋汤",2, 27,"糯米丸子汤",3, 28,"可乐",2, 29,"雪碧",3.5, 30,"果粒橙",3.5, 31,"农夫果园",4, 32,"农夫山泉",2, 33,"白开水",0