003列表和元组作业

#__author:"_nbloser"
#date: 2017/11/22

salary = input("请输入你的工资:")
if salary.isdigit() != True:
    print("你玩野！自动退出")
    exit("你必须输入数字")
else:
    salary = int(salary)
shopping_cart = []

balance = salary
while(True):
    goods = ["iphone6s","mac book","coffee","python book","bicydle"]
    price = [5800,9000,32,80,1500]

    for i in range(5):
        print(i+1,goods[i],price[i])
    num = input("请输入输入你要买的东西的号码：")

    if num.isdigit()!=True:
        print("你玩野！自动退出")
        exit("你必须输入数字")
    else:
        num = int(num)
    if num>len(goods):
        break
    balance = balance - price[num-1]
    if balance>0:
        print("已加入",goods[num-1],"到你的购物车，当前余额：",balance)
        shopping_cart.append(goods[num-1])
        shopping_cart.append(price[num-1])
    else:
        print("余额不足，",balance,",请重新选择")
        balance += price[num-1]

print("你已购买以下商品：")
for x in shopping_cart:
    print(x,end="  ")
    if 0!=shopping_cart.index(x)%2:
        print()

print("你的余额为：",balance)
print("欢迎下次光临！")

使用嵌套goods=[["iphone6s",5800],["macbook",9000],["coffee",32],["pythonbook",80],["bicycle",1500]]    里面使用元组更好
#列表长度
len（goods）
#判断int类型
ifnum.isdigit()!=True:

#enumerate
for k,i in enumerate(goods,1):
    print(k,end="")
    forjinrange(len(i)):

exit("你必须输入数字")

#__author:"_nbloser"
#date: 2017/11/22

salary = input("请输入你的工资:")
if salary.isdigit() != True:
    print("你玩野！自动退出")
    exit("你必须输入数字")
else:
    salary = int(salary)
shopping_cart = []

balance = salary
while(True):
    goods = [("iphone6s",5800), ("mac book",9000), ("coffee",32), ("python book",80), ("bicycle",1500)]

    for k,i in enumerate(goods,1):
        print(k,end="  ")
        for j in range(len(i)):
            print(i[j], end="  ")
        print()  #enumerate(goods,1)
    num = input("请输入输入你要买的东西的号码：")

    if num.isdigit()!=True:
        print("你玩野！自动退出")
        exit("你必须输入数字")
    else:
        num = int(num)
    if num>len(goods):
        break
    balance = balance - goods[num-1][1]
    if balance>0:
        print("已加入",goods[num-1][0],"到你的购物车，当前余额：",balance)
        shopping_cart.append(goods[num-1])
    else:
        print("余额不足，",balance,",请重新选择")
        balance += goods[num-1][1]

print("你已购买以下商品：")
for x in shopping_cart:
    for j in range(len(x)):
        print(x[j], end="  ")
    print()

print("你的余额为：",balance)
print("欢迎下次光临！")

#元组##
元组可以看成是可变的列表
#定义
a=(1,2,6,4,3,7,9,5,3)
要是只有一个元素，要加上一个逗号
b=("hua",)