dtong2468

 1 import random
 2 
 3 print('用列表儲存隨機整數：')
 4 lst = [random.randint(0,100) for i in range(5)]
 5 print(lst)
 6 
 7 print('\n用集合儲存隨機整數：')
 8 s1 = {random.randint(0,100) for i in range(5)}
 9 print(s1)
10 
11 print('\n用集合儲存隨機整數：')
12 s2 = set()
13 while len(s2) < 5:
14     s2.add(random.randint(0,100))
15 print(s2)

 1 # 列表遍歷
 2 lst = [55,92,88,79,96]
 3 
 4 # 遍歷方式1: 使用while + 索引
 5 i = 0
 6 while i < len(lst):
 7     print(lst[i],end = ' ')
 8     i += 1
 9 
10 print()
11 
12 # 遍歷方式2：使用for + 索引
13 for i in range(len(lst)):
14     print(lst[i],end = ' ')
15 print()
16 
17 # 遍歷方式3： 使用for...in
18 for i in lst:
19     print(i,end = ' ')
20 print()

 1 # 字典遍歷
 2 book_info = {'isbn': '978-7-5356-8297-0',
 3 '書名': '白鯨記',
 4 '作者': '克里斯多夫.夏布特',
 5 '譯者': '高文婧',
 6 '出版社': '湖南美術出版社',
 7 '售價': 82
 8 }
 9 # 遍歷key-value對：實現方式1
10 for key, value in book_info.items():
11     print(f'{key}:{value}')
12 print()
13 
14 # 遍歷key-value對：實現方式2
15 for item in book_info.items():
16     print(f'{item[0]}:{item[1]}')
17 print()
18 
19 # 遍歷值：實現方式1
20 for value in book_info.values():
21     print(value, end = ' ')
22 print()
23 
24 # 遍歷值: 實現方式2
25 for key in book_info.keys():
26     print(book_info[key], end = ' ')

 1 book_infos = [{'書名': '昨日的世界', '作者': '斯蒂芬.茨威格'},
 2 {'書名': '局外人', '作者': '阿爾貝.加繆'},
 3 {'書名': '設計中的設計', '作者': '原研哉'},
 4 {'書名': '萬歷十五年', '作者': '黃仁宇'},
 5 {'書名': '刀鋒', '作者': '毛姆'}
 6 ]
 7 i = 0
 8 while i < 5:
 9     j = book_infos[i]
10     b = str(j['書名'])
11     j['書名'] = b.join('《》')
12     print(str(i+1)+"."+j['書名']+','+j['作者'])
13     i +=1

 1 s = '''
 2 The Zen of Python, by Tim Peters
 3 Beautiful is better than ugly.
 4 Explicit is better than implicit.
 5 Simple is better than complex.
 6 Complex is better than complicated.
 7 Flat is better than nested.
 8 Sparse is better than dense.
 9 Readability counts.
10 Special cases aren't special enough to break the rules.
11 Although practicality beats purity.
12 Errors should never pass silently.
13 Unless explicitly silenced.
14 In the face of ambiguity, refuse the temptation to guess.
15 There should be one-- and preferably only one --obvious way to do it.
16 Although that way may not be obvious at first unless you're Dutch.
17 Now is better than never.
18 Although never is often better than *right* now.
19 If the implementation is hard to explain, it's a bad idea.
20 If the implementation is easy to explain, it may be a good idea.
21 Namespaces are one honking great idea -- let's do more of those!
22 '''
23 s1 = s.lower()
24 s2 = (chr(i) for i in range(97,123))
25 ab = {}
26 for i in s2:
27     ab.setdefault(i,0)
28 
29 for key in ab.keys():
30     ab[key] = s1.count(key)
31 list1 = list(item for item in ab.items())
32 list2 = [(value,key) for key, value in list1]
33 for value,key in sorted(list2,reverse = True):
34     print(f'{key}:{value}')

 1 major = {8326:'地信類',
 2 8329:'計算機類',
 3 8330:'氣科類',
 4 8336:'防災工程',
 5 8345:'海洋科學',
 6 8382:'氣象工程'}
 7 s1 = '專業代號信息'
 8 s2 = '學生專業查詢'
 9 print(f'{s1:-^50}')
10 for key, value in major.items():
11     print(f'{key}:{value}')
12 print(f'{s2:-^50}')
13 for i in major.keys():
14     id = input('請輸入學號：')
15     if id == '#':
16         print(f'查詢結束...')
17         break
18     m = int(id[4:8])
19     if m in major.keys():
20         m2 = major[m]
21         print(f'專業是：{m2}')
22         pass
23     else:
24         print(f'不在這些專業中...')
25         pass

 1 import random
 2 i = random.randint(1,31)
 3 print(f'猜猜五月哪一天是你的lucky day\U0001F609')
 4 day = eval(input('你有三次機會，猜吧(1~31)：'))
 5 for j in range(2):
 6     if day == i:
 7         print('哇，猜中了\U0001F923')
 8         break
 9     elif day > i:
10         print('猜晚啦，你的lucky day已經過了。')
11         day = eval(input('再猜(1~31)：'))
12         pass
13     elif day < i:
14         print('猜早啦，你的lucky day還沒到呢。')
15         day = eval(input('再猜(1~31)：'))
16         pass
17 print('哇哦，你的次數用光啦。')
18 print(f'偷偷告訴你，5月你的lucky day是{i}號。good luck\U0001F60A')

 1 datas = {'2049777001': ['籃球', '羽毛球', '美食', '漫畫'],
 2 '2049777002': ['音樂', '旅行'],
 3 '2049777003': ['馬拉松', '健身', '游戲'],
 4 '2049777004': [],
 5 '2049777005': ['足球', '閱讀'],
 6 '2049777006': ['發呆', '閑逛'],
 7 '2049777007': [],
 8 '2049777008': ['書法', '電影'],
 9 '2049777009': ['音樂', '閱讀', '電影', '漫畫'],
10 '2049777010': ['數學', '推理', '音樂', '旅行']
11 }
12 ih = set()
13 ih1 = list()
14 for value in datas.values():
15     for i in value:
16         ih1.append(i)
17         ih.add(i)
18 
19 ih2 = {}
20 for j in ih:
21     ih2.setdefault(j,0)
22 
23 for y in ih1:
24     if y in ih2.keys():
25         ih2[y] += 1
26     else:
27         pass
28 
29 list1 = list(ih2.items())
30 list2 = [(value, key) for key, value in list1]
31 for value, key in sorted(list2,reverse = True):
32     print(f'{key}:{value}')

 1 """
 2 家用電器銷售系統
 3 v1.3
 4 """
 5 
 6 # 歡迎信息
 7 print('歡迎使用家用電器銷售系統！')
 8 
 9 # 商品數據初始化
10 products = [
11 ['0001', '電視機', '海爾', 5999.00, 20],
12 ['0002', '冰箱', '西門子', 6998.00, 15],
13 ['0003', '洗衣機', '小天鵝', 1999.00, 10],
14 ['0004', '空調', '格力', 3900.00, 0],
15 ['0005', '熱水器', '美的', 688.00, 30],
16 ['0006', '筆記本', '聯想', 5699.00, 10],
17 ['0007', '微波爐', '蘇泊爾', 480.50, 33],
18 ['0008', '投影儀', '松下', 1250.00, 12],
19 ['0009', '吸塵器', '飛利浦', 999.00, 9],
20 ]
21 
22 # 初始化用戶購物車
23 products_cart = []
24 
25 option = input('請選擇您的操作: 1-查看商品；2-購物；3-查看購物車；其他-結賬')
26 while option in ['1','2','3']:
27     if option == '1':
28         # 產品信息列表
29         print('產品和價格信息如下：')
30         print('*'*60)
31         print('%-10s'%'編號','%-10s'%'名稱','%-10s'%'品牌',
32         '%-10s'%'價格','%-10s'%'庫存數量')
33         print('-'*60)
34         for i in range(len(products)):
35             print('%-10s'%products[i][0],'%-10s'%products[i][1],'%-10s'%products[i][2],
36             '%-10s'%products[i][3],'%-10s'%products[i][4])
37         print('-'*60)
38     elif option == '2':
39         product_id = input('請輸入您要購買的產品編號：')
40         while product_id not in [item[0] for item in products]:
41             product_id = input('編號不存在，請重新輸入您要購買的產品編號：')
42 
43         count = int(input('請輸入您要購買的產品數量：'))
44         while count >products[int(product_id)-1][4]:
45             count = int(input('數量超出庫存數量，請重新輸入您要購買的產品數量：'))
46 
47         # 將所購買商品加入購物車
48         if product_id not in [item[0] for item in products_cart]:
49             products_cart.append([product_id,count])
50 
51         else:
52             for i in range(len(products_cart)):
53                 if products_cart[i][0] == product_id:
54                     products_cart[i][1] += count
55 
56         # 更新商品列表
57         for i in range(len(products)):
58             if products[i][0] == product_id:
59                 products[i][4] -= count
60 
61     else:
62         print('購物車信息如下：')
63         print('*'*30)
64         print('%-10s'%'編號','%-10s'%'購買數量')
65         print('-'*30)
66         for i in range(len(products_cart)):
67             print('%-10s'%products_cart[i][0],'%6d'%products_cart[i][1])
68         print('-'*30)
69     option = input('操作成功！請選擇您的操作：1-查看商品；2-購物；3-查看購物車；其他-結賬')
70 
71 # 計算金額
72 if len(products_cart) > 0:
73     amount = 0
74     for i in range(len(products_cart)):
75         product_index = 0
76         for j in range(len(products)):
77             if products[j][0] == products_cart[i][0]:
78                 product_index = j
79                 break
80         price = products[product_index][3]
81         count = products_cart[i][1]
82         amount += price*count
83 
84     if 5000<amount <= 10000:
85         amount = amount*0.95
86     elif 10000<amount <= 20000:
87         amount = amount*0.9
88     elif amount>20000:
89         amount = amount*0.85
90     else:
91         amount = amount*1
92 
93 print('購買成功，您需要支付%8.2f元'%amount)
94 
95 # 退出系統
96 print('謝謝您的光臨，下次再見！')

 1 """
 2 家用電器銷售系統
 3 v1.3
 4 """
 5 
 6 # 歡迎信息
 7 print('歡迎使用家用電器銷售系統！')
 8 
 9 # 商品數據初始化
10 products = [
11 ['0001', '電視機', '海爾', 5999.00, 20],
12 ['0002', '冰箱', '西門子', 6998.00, 15],
13 ['0003', '洗衣機', '小天鵝', 1999.00, 10],
14 ['0004', '空調', '格力', 3900.00, 0],
15 ['0005', '熱水器', '美的', 688.00, 30],
16 ['0006', '筆記本', '聯想', 5699.00, 10],
17 ['0007', '微波爐', '蘇泊爾', 480.50, 33],
18 ['0008', '投影儀', '松下', 1250.00, 12],
19 ['0009', '吸塵器', '飛利浦', 999.00, 9],
20 ]
21 
22 # 初始化用戶購物車
23 products_cart = []
24 
25 option = input('請選擇您的操作: 1-查看商品；2-購物；3-查看購物車；其他-結賬')
26 while option in ['1','2','3']:
27     if option == '1':
28         # 產品信息列表
29         print('產品和價格信息如下：')
30         print('*'*60)
31         print('{:<10s}'.format('編號'),'{:<10s}'.format('名稱'),'{:<10s}'.format('品牌'),
32         '{:<10s}'.format('價格'),'{:<10s}'.format('庫存數量'))
33         print('-'*60)
34         for i in range(len(products)):
35             print('{:<10s}'.format(products[i][0]),
36             '{:<10s}'.format(products[i][1]),
37             '{:<10s}'.format(products[i][2]),
38             '{:<10.2f}'.format(products[i][3]),
39             '{:<10d}'.format(products[i][4]))
40         print('-'*60)
41     elif option == '2':
42         product_id = input('請輸入您要購買的產品編號：')
43         while product_id not in [item[0] for item in products]:
44             product_id = input('編號不存在，請重新輸入您要購買的產品編號：')
45 
46         count = int(input('請輸入您要購買的產品數量：'))
47         while count >products[int(product_id)-1][4]:
48             count = int(input('數量超出庫存數量，請重新輸入您要購買的產品數量：'))
49 
50         # 將所購買商品加入購物車
51         if product_id not in [item[0] for item in products_cart]:
52             products_cart.append([product_id,count])
53 
54         else:
55             for i in range(len(products_cart)):
56                 if products_cart[i][0] == product_id:
57                     products_cart[i][1] += count
58 
59         # 更新商品列表
60         for i in range(len(products)):
61             if products[i][0] == product_id:
62                 products[i][4] -= count
63 
64     else:
65         print('購物車信息如下：')
66         print('*'*30)
67         print('{:<10s}'.format('編號'),'{:<10s}'.format('購買數量'))
68         print('-'*30)
69         for i in range(len(products_cart)):
70             print('{:<10s}'.format(products_cart[i][0]),'{:6d}'.format(products_cart[i][1]))
71         print('-'*30)
72     option = input('操作成功！請選擇您的操作：1-查看商品；2-購物；3-查看購物車；其他-結賬')
73 
74 # 計算金額
75 if len(products_cart) > 0:
76     amount = 0
77     for i in range(len(products_cart)):
78         product_index = 0
79         for j in range(len(products)):
80             if products[j][0] == products_cart[i][0]:
81                 product_index = j
82                 break
83         price = products[product_index][3]
84         count = products_cart[i][1]
85         amount += price*count
86 
87     if 5000<amount <= 10000:
88         amount = amount*0.95
89     elif 10000<amount <= 20000:
90         amount = amount*0.9
91     elif amount>20000:
92         amount = amount*0.85
93     else:
94         amount = amount*1
95 
96 print('購買成功，您需要支付{:<8.2f}元'.format(amount))
97 
98 # 退出系統
99 print('謝謝您的光臨，下次再見！')

 1 """
 2 家用電器銷售系統
 3 v1.3
 4 """
 5 
 6 # 歡迎信息
 7 print('歡迎使用家用電器銷售系統！')
 8 
 9 # 商品數據初始化
10 products = [
11 ['0001', '電視機', '海爾', 5999.00, 20],
12 ['0002', '冰箱', '西門子', 6998.00, 15],
13 ['0003', '洗衣機', '小天鵝', 1999.00, 10],
14 ['0004', '空調', '格力', 3900.00, 0],
15 ['0005', '熱水器', '美的', 688.00, 30],
16 ['0006', '筆記本', '聯想', 5699.00, 10],
17 ['0007', '微波爐', '蘇泊爾', 480.50, 33],
18 ['0008', '投影儀', '松下', 1250.00, 12],
19 ['0009', '吸塵器', '飛利浦', 999.00, 9],
20 ]
21 
22 # 初始化用戶購物車
23 products_cart = []
24 
25 option = input('請選擇您的操作: 1-查看商品；2-購物；3-查看購物車；其他-結賬')
26 while option in ['1','2','3']:
27     if option == '1':
28         # 產品信息列表
29         print('產品和價格信息如下：')
30         print('*'*60)
31         a = ['編號','名稱','品牌','價格','庫存數量','購買數量']
32         print(f'{a[0]:10s}{a[1]:10s}{a[2]:10s}{a[3]:10s}{a[4]:10s}')
33         print('-'*60)
34         for i in range(len(products)):
35             print(f'{products[i][0]:10s}{products[i][1]:10s}{products[i][2]:10s}{products[i][3]:10.2f}{products[i][4]:10d}')
36         print('-'*60)
37     elif option == '2':
38         product_id = input('請輸入您要購買的產品編號：')
39         while product_id not in [item[0] for item in products]:
40             product_id = input('編號不存在，請重新輸入您要購買的產品編號：')
41 
42         count = int(input('請輸入您要購買的產品數量：'))
43         while count >products[int(product_id)-1][4]:
44             count = int(input('數量超出庫存數量，請重新輸入您要購買的產品數量：'))
45 
46         # 將所購買商品加入購物車
47         if product_id not in [item[0] for item in products_cart]:
48             products_cart.append([product_id,count])
49 
50         else:
51             for i in range(len(products_cart)):
52                 if products_cart[i][0] == product_id:
53                     products_cart[i][1] += count
54 
55         # 更新商品列表
56         for i in range(len(products)):
57             if products[i][0] == product_id:
58                 products[i][4] -= count
59 
60     else:
61         print('購物車信息如下：')
62         print('*'*30)
63         print(f'{a[0]:10s}{a[5]:10s}')
64         print('-'*30)
65         for i in range(len(products_cart)):
66             print(f'{products_cart[i][0]:10s}{products_cart[i][1]:6d}')
67         print('-'*30)
68     option = input('操作成功！請選擇您的操作：1-查看商品；2-購物；3-查看購物車；其他-結賬')
69 
70 # 計算金額
71 if len(products_cart) > 0:
72     amount = 0
73     for i in range(len(products_cart)):
74         product_index = 0
75         for j in range(len(products)):
76             if products[j][0] == products_cart[i][0]:
77                 product_index = j
78                 break
79         price = products[product_index][3]
80         count = products_cart[i][1]
81         amount += price*count
82 
83     if 5000<amount <= 10000:
84         amount = amount*0.95
85     elif 10000<amount <= 20000:
86         amount = amount*0.9
87     elif amount>20000:
88         amount = amount*0.85
89     else:
90         amount = amount*1
91 
92 print(f'購買成功，您需要支付{amount:8.2f}元')
93 
94 # 退出系統
95 print('謝謝您的光臨，下次再見！')

 1 """
 2 家用電器銷售系統
 3 v1.4
 4 """
 5 
 6 # 歡迎信息
 7 print('歡迎使用家用電器銷售系統！')
 8 
 9 # 商品數據初始化
10 products = [
11 {'id':'0001', 'name':'電視機', 'brand':'海爾', 'price':5999.00, 'count':20},
12 {'id':'0002', 'name':'冰箱', 'brand':'西門子', 'price':6998.00, 'count':15},
13 {'id':'0003', 'name':'洗衣機', 'brand':'小天鵝', 'price':1999.00, 'count':10},
14 {'id':'0004', 'name':'空調', 'brand':'格力', 'price':3900.00, 'count':0},
15 {'id':'0005', 'name':'熱水器', 'brand':'美的', 'price':688.00, 'count':30},
16 {'id':'0006', 'name':'筆記本', 'brand':'聯想', 'price':5699.00, 'count':10},
17 {'id':'0007', 'name':'微波爐', 'brand':'蘇泊爾', 'price':480.50, 'count':33},
18 {'id':'0008', 'name':'投影儀', 'brand':'松下', 'price':1250.00, 'count':12},
19 {'id':'0009', 'name':'吸塵器', 'brand':'飛利浦', 'price':999.00, 'count':9},
20 ]
21 
22 # 初始化用戶購物車
23 products_cart = []
24 
25 option = input('請選擇您的操作: 1-查看商品；2-購物；3-查看購物車；其他-結賬')
26 while option in ['1','2','3']:
27     if option == '1':
28         # 產品信息列表
29         print('產品和價格信息如下：')
30         print('*'*60)
31         print('%-10s'%'編號','%-10s'%'名稱','%-10s'%'品牌',
32         '%-10s'%'價格','%-10s'%'庫存數量')
33         print('-'*60)
34         for i in range(len(products)):
35             print('%-10s'%products[i]['id'],
36             '%-10s'%products[i]['name'],
37             '%-10s'%products[i]['brand'],
38             '%-10s'%products[i]['price'],
39             '%-10s'%products[i]['count'])
40         print('-'*60)
41     elif option == '2':
42         product_id = input('請輸入您要購買的產品編號：')
43         while product_id not in [item['id'] for item in products]:
44             product_id = input('編號不存在，請重新輸入您要購買的產品編號：')
45 
46         count = int(input('請輸入您要購買的產品數量：'))
47         while count >products[int(product_id)-1]['count']:
48             count = int(input('數量超出庫存數量，請重新輸入您要購買的產品數量：'))
49 
50         # 將所購買商品加入購物車
51         if product_id not in [item['id'] for item in products_cart]:
52             products_cart.append({'id':product_id,'count':count})
53 
54         else:
55             for i in range(len(products_cart)):
56                 if products_cart[i].get('id') == product_id:
57                     products_cart[i]['count'] += count
58 
59         # 更新商品列表
60         for i in range(len(products)):
61             if products[i]['id'] == product_id:
62                 products[i]['count'] -= count
63 
64     else:
65         print('購物車信息如下：')
66         print('*'*30)
67         print('%-10s'%'編號','%-10s'%'購買數量')
68         print('-'*30)
69         for i in range(len(products_cart)):
70             print('%-10s'%products_cart[i]['id'],'%6d'%products_cart[i]['count'])
71         print('-'*30)
72     option = input('操作成功！請選擇您的操作：1-查看商品；2-購物；3-查看購物車；其他-結賬')
73 
74 # 計算金額
75 if len(products_cart) > 0:
76     amount = 0
77     for i in range(len(products_cart)):
78         product_index = 0
79         for j in range(len(products)):
80             if products[j]['id'] == products_cart[i]['id']:
81                 product_index = j
82                 break
83         price = products[product_index]['price']
84         count = products_cart[i]['count']
85         amount += price*count
86 
87     if 5000<amount <= 10000:
88         amount = amount*0.95
89     elif 10000<amount <= 20000:
90         amount = amount*0.9
91     elif amount>20000:
92         amount = amount*0.85
93     else:
94         amount = amount*1
95 
96 print('購買成功，您需要支付%8.2f元'%amount)
97 
98 # 退出系統
99 print('謝謝您的光臨，下次再見！')

 1 """
 2 家用電器銷售系統
 3 v1.4
 4 """
 5 
 6 # 歡迎信息
 7 print('歡迎使用家用電器銷售系統！')
 8 
 9 # 商品數據初始化
10 products = [
11 {'id':'0001', 'name':'電視機', 'brand':'海爾', 'price':5999.00, 'count':20},
12 {'id':'0002', 'name':'冰箱', 'brand':'西門子', 'price':6998.00, 'count':15},
13 {'id':'0003', 'name':'洗衣機', 'brand':'小天鵝', 'price':1999.00, 'count':10},
14 {'id':'0004', 'name':'空調', 'brand':'格力', 'price':3900.00, 'count':0},
15 {'id':'0005', 'name':'熱水器', 'brand':'美的', 'price':688.00, 'count':30},
16 {'id':'0006', 'name':'筆記本', 'brand':'聯想', 'price':5699.00, 'count':10},
17 {'id':'0007', 'name':'微波爐', 'brand':'蘇泊爾', 'price':480.50, 'count':33},
18 {'id':'0008', 'name':'投影儀', 'brand':'松下', 'price':1250.00, 'count':12},
19 {'id':'0009', 'name':'吸塵器', 'brand':'飛利浦', 'price':999.00, 'count':9},
20 ]
21 
22 # 初始化用戶購物車
23 products_cart = []
24 
25 option = input('請選擇您的操作: 1-查看商品；2-購物；3-查看購物車；其他-結賬')
26 while option in ['1','2','3']:
27     if option == '1':
28         # 產品信息列表
29         print('產品和價格信息如下：')
30         print('*'*60)
31         print('{:<10s}'.format('編號'),'{:<10s}'.format('名稱'),'{:<10s}'.format('品牌'),
32         '{:<10s}'.format('價格'),'{:<10s}'.format('庫存數量'))
33         print('-'*60)
34         for i in range(len(products)):
35             print('{:<10s}'.format(products[i]['id']),
36             '{:<10s}'.format(products[i]['name']),
37             '{:<10s}'.format(products[i]['brand']),
38             '{:<10.2f}'.format(products[i]['price']),
39             '{:<10d}'.format(products[i]['count']))
40         print('-'*60)
41     elif option == '2':
42         product_id = input('請輸入您要購買的產品編號：')
43         while product_id not in [item['id'] for item in products]:
44             product_id = input('編號不存在，請重新輸入您要購買的產品編號：')
45 
46         count = int(input('請輸入您要購買的產品數量：'))
47         while count >products[int(product_id)-1]['count']:
48             count = int(input('數量超出庫存數量，請重新輸入您要購買的產品數量：'))
49 
50         # 將所購買商品加入購物車
51         if product_id not in [item['id'] for item in products_cart]:
52             products_cart.append({'id':product_id,'count':count})
53 
54         else:
55             for i in range(len(products_cart)):
56                 if products_cart[i].get('id') == product_id:
57                     products_cart[i]['count'] += count
58 
59         # 更新商品列表
60         for i in range(len(products)):
61             if products[i]['id'] == product_id:
62                 products[i]['count'] -= count
63 
64     else:
65         print('購物車信息如下：')
66         print('*'*30)
67         print('{:<10s}'.format('編號'),'{:<10s}'.format('購買數量'))
68         print('-'*30)
69         for i in range(len(products_cart)):
70             print('{:<10s}'.format(products_cart[i]['id']),'{:6d}'.format(products_cart[i]['count']))
71         print('-'*30)
72     option = input('操作成功！請選擇您的操作：1-查看商品；2-購物；3-查看購物車；其他-結賬')
73 
74 # 計算金額
75 if len(products_cart) > 0:
76     amount = 0
77     for i in range(len(products_cart)):
78         product_index = 0
79         for j in range(len(products)):
80             if products[j]['id'] == products_cart[i]['id']:
81                 product_index = j
82                 break
83         price = products[product_index]['price']
84         count = products_cart[i]['count']
85         amount += price*count
86 
87     if 5000<amount <= 10000:
88         amount = amount*0.95
89     elif 10000<amount <= 20000:
90         amount = amount*0.9
91     elif amount>20000:
92         amount = amount*0.85
93     else:
94         amount = amount*1
95 
96 print('購買成功，您需要支付{:<8.2f}元'.format(amount))
97 
98 # 退出系統
99 print('謝謝您的光臨，下次再見！') 

 1 """
 2 家用電器銷售系統
 3 v1.4
 4 """
 5 
 6 # 歡迎信息
 7 print('歡迎使用家用電器銷售系統！')
 8 
 9 # 商品數據初始化
10 products = [
11 {'id':'0001', 'name':'電視機', 'brand':'海爾', 'price':5999.00, 'count':20},
12 {'id':'0002', 'name':'冰箱', 'brand':'西門子', 'price':6998.00, 'count':15},
13 {'id':'0003', 'name':'洗衣機', 'brand':'小天鵝', 'price':1999.00, 'count':10},
14 {'id':'0004', 'name':'空調', 'brand':'格力', 'price':3900.00, 'count':0},
15 {'id':'0005', 'name':'熱水器', 'brand':'美的', 'price':688.00, 'count':30},
16 {'id':'0006', 'name':'筆記本', 'brand':'聯想', 'price':5699.00, 'count':10},
17 {'id':'0007', 'name':'微波爐', 'brand':'蘇泊爾', 'price':480.50, 'count':33},
18 {'id':'0008', 'name':'投影儀', 'brand':'松下', 'price':1250.00, 'count':12},
19 {'id':'0009', 'name':'吸塵器', 'brand':'飛利浦', 'price':999.00, 'count':9},
20 ]
21 
22 # 初始化用戶購物車
23 products_cart = []
24 
25 option = input('請選擇您的操作: 1-查看商品；2-購物；3-查看購物車；其他-結賬')
26 while option in ['1','2','3']:
27     if option == '1':
28         # 產品信息列表
29         print('產品和價格信息如下：')
30         print('*'*60)
31         a = ['編號','名稱','品牌','價格','庫存數量','購買數量']
32         print(f'{a[0]:10s}{a[1]:10s}{a[2]:10s}{a[3]:10s}{a[4]:10s}')
33         print('-'*60)
34         for i in range(len(products)):
35             print(f'{products[i]["id"]:10s}{products[i]["name"]:10s}{products[i]["brand"]:10s}{products[i]["price"]:10.2f}{products[i]["count"]:10d}')
36         print('-'*60)
37     elif option == '2':
38         product_id = input('請輸入您要購買的產品編號：')
39         while product_id not in [item['id'] for item in products]:
40             product_id = input('編號不存在，請重新輸入您要購買的產品編號：')
41 
42         count = int(input('請輸入您要購買的產品數量：'))
43         while count >products[int(product_id)-1]['count']:
44             count = int(input('數量超出庫存數量，請重新輸入您要購買的產品數量：'))
45 
46         # 將所購買商品加入購物車
47         if product_id not in [item['id'] for item in products_cart]:
48             products_cart.append({'id':product_id,'count':count})
49 
50         else:
51             for i in range(len(products_cart)):
52                 if products_cart[i].get('id') == product_id:
53                     products_cart[i]['count'] += count
54 
55         # 更新商品列表
56         for i in range(len(products)):
57             if products[i]['id'] == product_id:
58                 products[i]['count'] -= count
59 
60     else:
61         print('購物車信息如下：')
62         print('*'*30)
63         print(f'{a[0]:10s}{a[5]:10s}')
64         print('-'*30)
65         for i in range(len(products_cart)):
66             print(f'{products_cart[i]["id"]:10s}{products_cart[i]["count"]:6d}')
67         print('-'*30)
68     option = input('操作成功！請選擇您的操作：1-查看商品；2-購物；3-查看購物車；其他-結賬')
69 
70 # 計算金額
71 if len(products_cart) > 0:
72     amount = 0
73     for i in range(len(products_cart)):
74         product_index = 0
75         for j in range(len(products)):
76             if products[j]['id'] == products_cart[i]['id']:
77                 product_index = j
78                 break
79         price = products[product_index]['price']
80         count = products_cart[i]['count']
81         amount += price*count
82 
83     if 5000<amount <= 10000:
84         amount = amount*0.95
85     elif 10000<amount <= 20000:
86         amount = amount*0.9
87     elif amount>20000:
88         amount = amount*0.85
89     else:
90         amount = amount*1
91 
92 print(f'購買成功，您需要支付{amount:8.2f}元')
93 
94 # 退出系統
95 print('謝謝您的光臨，下次再見！')