003列表和元组作业

 

 1 #__author:"_nbloser"
 2 #date: 2017/11/22
 3 
 4 salary = input("请输入你的工资:")
 5 if salary.isdigit() != True:
 6     print("你玩野！自动退出")
 7     exit("你必须输入数字")
 8 else:
 9     salary = int(salary)
10 shopping_cart = []
11 
12 balance = salary
13 while(True):
14     goods = ["iphone6s","mac book","coffee","python book","bicydle"]
15     price = [5800,9000,32,80,1500]
16 
17     for i in range(5):
18         print(i+1,goods[i],price[i])
19     num = input("请输入输入你要买的东西的号码：")
20 
21     if num.isdigit()!=True:
22         print("你玩野！自动退出")
23         exit("你必须输入数字")
24     else:
25         num = int(num)
26     if num>len(goods):
27         break
28     balance = balance - price[num-1]
29     if balance>0:
30         print("已加入",goods[num-1],"到你的购物车，当前余额：",balance)
31         shopping_cart.append(goods[num-1])
32         shopping_cart.append(price[num-1])
33     else:
34         print("余额不足，",balance,",请重新选择")
35         balance += price[num-1]
36 
37 print("你已购买以下商品：")
38 for x in shopping_cart:
39     print(x,end="  ")
40     if 0!=shopping_cart.index(x)%2:
41         print()
42 
43 print("你的余额为：",balance)
44 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")

 1 #__author:"_nbloser"
 2 #date: 2017/11/22
 3 
 4 salary = input("请输入你的工资:")
 5 if salary.isdigit() != True:
 6     print("你玩野！自动退出")
 7     exit("你必须输入数字")
 8 else:
 9     salary = int(salary)
10 shopping_cart = []
11 
12 balance = salary
13 while(True):
14     goods = [("iphone6s",5800), ("mac book",9000), ("coffee",32), ("python book",80), ("bicycle",1500)]
15 
16     for k,i in enumerate(goods,1):
17         print(k,end="  ")
18         for j in range(len(i)):
19             print(i[j], end="  ")
20         print()  #enumerate(goods,1)
21     num = input("请输入输入你要买的东西的号码：")
22 
23     if num.isdigit()!=True:
24         print("你玩野！自动退出")
25         exit("你必须输入数字")
26     else:
27         num = int(num)
28     if num>len(goods):
29         break
30     balance = balance - goods[num-1][1]
31     if balance>0:
32         print("已加入",goods[num-1][0],"到你的购物车，当前余额：",balance)
33         shopping_cart.append(goods[num-1])
34     else:
35         print("余额不足，",balance,",请重新选择")
36         balance += goods[num-1][1]
37 
38 print("你已购买以下商品：")
39 for x in shopping_cart:
40     for j in range(len(x)):
41         print(x[j], end="  ")
42     print()
43 
44 print("你的余额为：",balance)
45 print("欢迎下次光临！")
代码优化后

 

 

#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",)

 

posted @ 2017-11-27 00:34  Alos403  阅读(228)  评论(0)  编辑  收藏  举报