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  • 3-day3-list-truple-map.py

    3-day3-list-truple-map.py
    #! /usr/bin/env python# -*- coding: utf-8 -*-# __author__ = "w.z"# Date: 2017/6/8# 1. 元素分类# 有如下值集合 [11,22,33,44,55,66,77,88,99,90...],将所有大于 66 的值保存至字典的第一个key中,将小于 66 的值保存至第二个key的值中。# 即: {'k1': 大于66的所有值, 'k2': 小于66的所有值} 
     
    map1 = {'k1': '', 'k2': ''} 
    list1 = [11, 22, 33, 44, 55, 66, 66, 77, 88, 99, 90] 
    list2 = [] 
    list3 = [] 
    for i in list1: 
        if i < 66: 
            list2.append(i) 
        else: 
            list3.append(i) 
    map1 = {'k1': list2, 'k2': list3} 
    print(map1) 
     
    # 2. 查找# 查找列表中元素,移除每个元素的空格,并查找以 a或A开头 并且以 c 结尾的所有元素。#     li = ["alec", " aric", "Alex", "Tony", "rain"]#     tu = ("alec", " aric", "Alex", "Tony", "rain")#     dic = {'k1': "alex", 'k2': ' aric',  "k3": "Alex", "k4": "Tony"} 
     
    li = ["alec", " aric", "Alex", "Tony", "rain"] 
    li_new = [] 
    for i in li: 
        i = i.strip() 
        li_new.append(i) 
    li = li_new 
    for i in li: 
        if i.startswith('a') or i.startswith('A') and i.endswith('c'): 
            print(i) 
     
    tu = ("alec", " aric", "Alex", "Tony", "rain") 
    tu_list = list(tu) 
    for i in tu_list: 
        if i.strip().startswith('a') or i.strip().startswith('A') and i.strip(' ').endswith('c'): 
            print(i.strip()) 
     
    dic = {'k1': "alex", 'k2': ' aric',  "k3": "Alex", "k4": "Tony"} 
    for i in dic.values(): 
        if i.startswith('a') or i.startswith('A') and i.endswith('c'): 
            print(i.strip()) 
     
    # 3. 输出商品列表,用户输入序号,显示用户选中的商品# 商品 li = ["手机", "电脑", '鼠标垫', '游艇'] 
     
    li = ["手机", "电脑", '鼠标垫', '游艇'] 
    num_goods = {} 
    for i in range(0, len(li)): 
        print(i+1, li[i]) 
        num_goods[i+1] = li[i] 
    num = input('Please input your choice (1-%s): ' % len(li)) 
    mun_1 = int(num) - 1 
    print(num_goods[int(num)]) 
     
     
    # 4 购物车# 功能要求:# 要求用户输入总资产,例如:2000# 显示商品列表,让用户根据序号选择商品,加入购物车# 购买,如果商品总额大于总资产,提示账户余额不足,否则,购买成功。# 附加:可充值、某商品移除购物车# goods = [#     {"name": "电脑", "price": 1999},#     {"name": "鼠标", "price": 10},#     {"name": "游艇", "price": 20},#     {"name": "美女", "price": 998},# ] 
     
     
    goods = [ 
        {"name": "电脑", "price": 1999}, 
        {"name": "鼠标", "price": 10}, 
        {"name": "游艇", "price": 20}, 
        {"name": "美女", "price": 998}, 
    ] 
    list_store = [] 
    goods_map = {} 
    goods_price = {} 
    total = 0 
    sum1 = input('Please input your money: ') 
    i = 1 
    print('There are some goods for you to choice: ') 
    for items in goods: 
        print(i, items['name']) 
        goods_map[i] = items['name']          # 此处生成一个 序列和商品的字典 
        goods_price[items['name']] = items['price']        #此处生成一个 商品和价格的字典 
        i += 1 
    print('商品价格: ', goods_price) 
    tag = Truewhile tag: 
        choice = input('Please input your choice num (q quit,d del): ') 
        if choice != 'q' and choice != 'd': 
            list_store.append(str(goods_map[int(choice)])) 
            print(list_store) 
        elif choice == 'd': 
            tt = Truewhile tt: 
                nn = input('购物车清单,请输入要删除的对象(1-n) q退出:') 
                if nn != 'q': 
                    list_store.pop(int(nn) - 1) 
                    print(list_store) 
                else: 
                    breakelif choice == 'q': 
            print(list_store) 
            breakfor x in list_store: 
        total += goods_price[x] 
    if total < int(sum1): 
        print('商品总价格 %s ,购买成功' % total) 
    else: 
            print('购买失败,余额不足') 
     
     
    # 选做题:用户交互,显示省市县三级联动的选择## dic = {#     "河北": {#         "石家庄": ["鹿泉", "藁城", "元氏"],#         "邯郸": ["永年", "涉县", "磁县"],#     }#     "河南": {#         ...#     }#     "山西": {#         ...#     }## }
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  • 原文地址:https://www.cnblogs.com/cx2c/p/7050098.html
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