Day3.三级菜单+购物车打印格式优化+三级菜单优化版

时间:2023-01-22 21:56:11

程序: 三级菜单
要求: 1.打印省、市、县三级菜单
2.可返回上一级
3.可随时退出程序

menu = {
'北京':{'海淀':{'五道口':{'soho':{},
'网易':{},
'google':{}},
'中关村':{'爱奇艺':{},
'汽车之家':{},
'youku':{},},
'上地':{'百度':{},},},
'昌平':{'沙河':{'老男孩':{},
'北航':{},},
'天通苑':{},
'回龙观':{},},
'朝阳':{},
'东城':{},
},
'上海':{'闵行':{'人民广场':{'炸鸡店':{}}},
'闸北':{'火车站':{'携程':{}}},
'浦东':{},
},
'山东':{},
}
flag_exit
=True
while flag_exit:
for i in menu:
print(i)
choice1
= input("请输入>").strip()
if choice1 in menu:
while flag_exit:
next_level1
=menu[choice1]
for i in next_level1:
print(i)
choice2
= input("请输入>>").strip()
if choice2 in next_level1:
while flag_exit:
next_level2
= next_level1[choice2]
for i in next_level2:
print(i)
choice3
= input("请输入>>>").strip()
if choice3 in next_level2:
while flag_exit:
next_level3
=next_level2[choice3]
for i in next_level3:
print(i)
choice4
= input("请输入>>>>").strip()
if choice4 == "q":
flag_exit
=False
continue
elif choice4=="b":
break
else:
continue
elif choice3 =="q":
flag_exit
=False
continue
elif choice3 =="b":
break
else:
continue
elif choice2 =="q":
flag_exit
=False
continue
elif choice2 =="b":
break
else:
continue
elif choice1=="q":
flag_exit
=False
continue
else:
continue

Day3.三级菜单+购物车打印格式优化+三级菜单优化版

 1 product_list=[["苹果",10],["椰子",200],["菠萝",20],["火龙果",50],]
2 shopping_cart={}
3 salary=int(input("请输入你的薪资:"))
4 while True:
5 index=0
6 for product in product_list:
7 print(index,product)
8 index+=1
9 choice=input(">>>:")
10 if choice.isdigit():
11 choice=int(choice)
12 if choice>= 0 and choice<(len(product_list)):
13 product=product_list[choice]
14 if salary >= product[1]:
15 if product[0] not in shopping_cart:
16 shopping_cart[product[0]] = [product[1],1]
17 else:
18 shopping_cart[product[0]][1] +=1
19 salary -= product[1]
20 print(product[0]+"已成功购买,您还剩余"+str(salary)+"元钱")
21 else:
22 print("余额不足,还差"+str(product[1]-salary)+"元钱才能购买"+product[0])
23 else:
24 print("商品不存在!")
25 elif choice == "q":
26 print("-------商品列表-------")
27 print("id 商品 数量 单价 总价")
28 id_number=1
29 total=0
30 for i in shopping_cart:
31 print("%s\t%s\t%s\t%s\t%s\t"
32 %(id_number,
33 i,
34 shopping_cart[i][1],
35 shopping_cart[i][0],
36 shopping_cart[i][0]*shopping_cart[i][1]))
37 id_number+=1
38 total +=shopping_cart[i][0]*shopping_cart[i][1]
39 print("您的余额为:",salary)
40 print("您总花费为:",total)
41 print("---------end----------")
42 break
43 else:
44 print("不能识别该选项")

 三级菜单优化后的代码:

Day3.三级菜单+购物车打印格式优化+三级菜单优化版