goods = [
{"name": "电脑", "price": 1999},
{"name": "鼠标", "price": 10},
{"name": "游艇", "price": 20},
{"name": "美女", "price": 998},
]
用户信息:
user = {"username":"lubenwei", "password": "123456"}
功能要求：
1、启动程序后，输入用户名密码后，让用户输入工资，然后打印商品列表
2、用户根据商品编号购买商品
3、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
4、退出时，打印已购买商品和余额
goods = [
{"name": "电脑", "price": 1999},
{"name": "鼠标", "price": 10},
{"name": "游艇", "price": 20},
{"name": "美女", "price": 998},
]
user = {"username":"lubenwei", "password": "123456"}
lis = []
while 1 :
a = input("请输入用户名:")
b = input("请输入密码:")
if a == user["username"] and b == user["password"] :
print("登陆成功")
x = int(input("请输入你的工资:"))
for i in range(len(goods)) :
print(i+1,goods[i]["name"],goods[i]["price"])
while 1 :
y = input("请输入你想买的序列号:")
if y.isdigit() == True :
if int(y) <= len(goods) and int(y) > 0 and x >= goods[int(y)-1]["price"]:
print("您购买了%s,还有%s元"%(goods[int(y)-1]["name"],x - goods[int(y)-1]["price"]))
x = x - goods[int(y) - 1]["price"]
lis.append("您购买了%s,还有%s元"%(goods[int(y)-1]["name"],x))
elif int(y) <= len(goods) and int(y) > 0 and x < goods[int(y) - 1]["price"]:
print("您余额不足,请选择别的商品")
else :
print("您输入错误,请重新选择")
elif y.upper() == "Q" :
break
else :
print("输入错误,请重新输入")
print(lis)
break
else :
print("账号密码错误,请重新输入.")
