python购物车小案例
# 案列描述:有一个小型水果店里面有水果(苹果:¥8/kg,香蕉:¥5/kg,芒果:¥15/kg,葡萄:¥12/kg),客户带了100元钱进店选购水果。
# 1.客户输入相应序号和对应数量后将该商品加入购物车
# 2.付款时检查客户是否有支付能力(结算金额<=100)
# 3.客户输入Q/q退出选购
lis = [{'name': '苹果', 'price': 8},
{'name': '香蕉', 'price': 5},
{'name': '芒果', 'price': 15},
{'name': '葡萄', 'price': 12}]
moeny = input('请输入充值金额:')
for i, v in enumerate(lis):
print('序号:{},商品:{},价格:{}'.format(i + 1, v['name'], v['price']))
shopping = {}
flag = True
while flag:
chooes = input('请输入选择的商品序号(输入Q/q退出):')
if chooes.isdigit() and int(chooes) <= len(lis):
while 1:
unmber = input('请输入需要购买的数量(输入Q/q退出):')
if unmber.isdigit():
name = lis[int(chooes) - 1]['name']
v = 0
if shopping.get(name, 'no') == 'no':
shopping[name] = unmber
else:
v = int(shopping[name])
unmber = int(unmber) + v
shopping[name] = unmber
print('---添加购物车成功---')
print('您购买的是:{},数量为:{}'.format(name, int(unmber) - v))
see_shopping = input('---输入Y/y/1查看购物车或结算,其他任意键继续选购---')
if see_shopping == 'Y' or see_shopping == 'y' or see_shopping == '1':
for name, number in shopping.items():
print('您的购物车里面有:{},数量:{}'.format(name, number))
#未进行结算
else:
break
break
elif unmber == 'Q' or unmber == 'q':
flag = False
break
else:
print('输入有误,请重新输入。')
elif chooes == 'Q' or chooes == 'q':
break
else:
print('输入有误,请重新输入。')
print('---程序已退出---')