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列表元组练习一例

时间:2019-04-21 23:01:27      阅读:319      评论:0      收藏:0      [点我收藏+]

标签:app   please   知识点   dig   ali   The   select   format   pytho   

知识点:

str.isdigit() 可以判断字符串能否被转换为int类型

enumerate() 枚举list里边的内容

格式化高亮显示的方法

product_list = [
(Iphone,5800),
    (Mac Pro,9800),
    (Bike,800),
    (Watch,10600),
    (Coffee,31),
    (Alex Python,120),
]
shopping_cart = []

salary = input(Please input your salary:)

#isdigit函数可以判断字符串能否被转换为int类型
if salary.isdigit():
    salary = int(salary)
    #使用enumerate枚举product_list里边的内容
    for index,item in enumerate(product_list):
        print(index,item)

    while True:
        select_num = input(Please select the product_num:)
        if select_num.isdigit():
            select_num = int(select_num)
            if salary >= product_list[select_num][1]:
                salary -= product_list[select_num][1]
                shopping_cart.append(product_list[select_num])
                #高亮显示,31为字体红色高亮,32为绿色
                print(%s has been put in your shopping cart. You salary remain \033[32;1m%s\033[0m%(product_list[select_num],salary))
            else:
                # 高亮显示,41为底色红色高亮42为绿色
                print(\033[41;1mYour acount balance is not enough\033[0m,you remain balance is {0}.format(salary))
                break
        elif select_num == q:
            break
        else:
            print(Your input is invalid.)
            break
print(Shopping is end, you have bought:)
for i in shopping_cart:
    print(i)

测试结果

Please input your salary:5555
0 (Iphone, 5800)
1 (Mac Pro, 9800)
2 (Bike, 800)
3 (Watch, 10600)
4 (Coffee, 31)
5 (Alex Python, 120)
Please select the product_num:2
(Bike, 800) has been put in your shopping cart. You salary remain 4755
Please select the product_num:3
Your acount balance is not enough,you remain balance is 4755
Shopping is end, you have bought:
(Bike, 800)

 

列表元组练习一例

标签:app   please   知识点   dig   ali   The   select   format   pytho   

原文地址:https://www.cnblogs.com/Richard-Liang/p/10747553.html

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