程序：购物车程序
需求:
- 启动程序后，让用户输入工资，然后打印商品列表
- 允许用户根据商品编号购买商品
- 用户选择商品后，检测余额是否够，够就直接扣款，不够就提醒
- 可随时退出，退出时，打印已购买商品和余额
#-*- coding:utf8 -*-
shopping_list=[]
product_list = [
('Iphone',5800),
('Mac Pro',9800),
('Bike',800),
('Watch',10600),
('Coffee',31),
('Alex Python',120),
]
salary = input("Input your salary:")
if salary.isdigit():
salary=int(salary)
while True:
for index ,item in enumerate(product_list):
print(index,item)
user_choice=input("请选择您要买的商品：")
if user_choice.isdigit():
user_choice=int(user_choice)
if user_choice<len(product_list) and user_choice>=0:
item_choice=product_list[user_choice]
if item_choice[1]<=salary:
print ("买的起")
shopping_list.append(item_choice)
salary-=item_choice[1]
print("将您的商品%s加入购物车,余额%s" %(item_choice,salary))
else:
print("余额不够:",salary)
else:
print("商品不存在")
elif user_choice=='q':
print("--打印商品列表-----")
for i in product_list:
print(i)
print("您当前的余额：",salary)
exit()
else:
print ("不正确")
程序: 三级菜单
要求:
- 打印省、市、县三级菜单
- 可返回上一级
- 可随时退出程序
#-*- coding:utf8 -*-
data = {
'北京':{
"昌平":{
"沙河":["oldboy","test"],
"天通苑":["链家地产","我爱我家"]
},
"朝阳":{
"望京":["奔驰","陌陌"],
"国贸":{"CICC","HP"},
"东直门":{"Advent","飞信"},
},
"海淀":{},
}, '广东':{
"东莞":{},
"常熟":{},
"佛山":{},
},
} exit_flag=True
while exit_flag:
for i in data:
print(i)
choice=input("请选择入口：")
if choice in data:
while exit_flag:
for i2 in data[choice]:
print("\t\t",i2)
choice2=input("请选择入口2：")
if choice2 in data[choice]:
while exit_flag:
for i3 in data[choice][choice2]:
print("\t\t",i3)
choice3=input("请选择入口3：")
if choice3 in data[choice][choice2]:
for i4 in data[choice][choice2][choice3]:
print("\t\t", i4)
choice4=input("最后一层按b返回：")
if choice4=='b':
pass
if choice4=='q':
exit_flag=False
if choice3=="b":
break
elif choice3=="q":
exit_flag=False
if choice2=="b":
break
elif choice2=="q":
exit_flag=False