实验任务1
源代码
1 import random
2
3 print('用列表存储随机整数：')
4 lst=[random.randint(0,100) for i in range(5)]
5 print(lst)
6
7 print('\n用集合存储随机整数：')
8 s1={random.randint(0,100) for i in range(5)}
9 print(s1)
10
11 print('\n用集合存储随机整数：')
12 s2=set()
13 while len(s2)<5:
14 s2.add(random.randint(0,100))
15 print(s2)
运行截图
实验任务2
task2-1
源代码
1 #列表遍历 2 lst=[55,92,88,79,96] 3 4 #遍历方式1：使用while+索引 5 i=0 6 while i <len(lst): 7 print(lst[i],end=' ') 8 i+=1 9 print() 10 11 #遍历方式2：使用for+索引 12 for i in range(len(lst)): 13 print(lst[i],end=' ') 14 print() 15 16 #遍历方式3：使用for...in 17 for i in lst: 18 print(i,end=' ') 19 print()
运行截图
task2-2
源代码
1 # 字典遍历
2 book_info = {'isbn': '978-7-5356-8297-0',
3 '书名': '白鲸记',
4 '作者': '克里斯多夫.夏布特',
5 '译者': '高文婧',
6 '出版社': '湖南美术出版社',
7 '售价':82
8 }
9 #遍历key-value对：实现方式1
10 for key,value in book_info.items():
11 print(f'{key}:{value}')
12 print()
13
14 #实现方式2
15 for item in book_info.items():
16 print(f'{item[0]}:{item[1]}')
17 print()
18
19 #遍历值：实现方式1
20 for value in book_info.values():
21 print(value,end=' ')
22 print()
23
24 #实现方式2
25 for key in book_info.keys():
26 print(book_info[key],end=' ')
27 print()
运行截图
task2-3
源代码
1 book_infos = [{'书名': '昨日的世界', '作者': '斯蒂芬.茨威格'},
2 {'书名': '局外人', '作者': '阿尔贝.加缪'},
3 {'书名': '设计中的设计', '作者': '原研哉'},
4 {'书名': '万历十五年', '作者': '黄仁宇'},
5 {'书名': '刀锋', '作者': '毛姆'}
6 ]
7 for i in range(len(book_infos)):
8 d=book_infos[i]
9 for key,value in d.items():
10 if key =='书名':
11 print(f'{i+1}.《{d[key]}》,',end='')
12 if key =='作者':
13 print(f'{d[key]}')
运行截图
实验任务3
源代码
1 text='''The Zen of Python, by Tim Peters
2
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.lst
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 x=text.lower()
23 y='abcdefghijklmnopqrstuvwxyz'
24 z={}
25 for i in y:
26 if i in x:
27 z.update({i:x.count(i)})
28 lst1=list(z.items())
29 lst2=[(value,key) for key,value in lst1]
30 for value,key in sorted(lst2,reverse=True):
31 print(f'{key}:{value}')
运行截图
实验任务4
源代码
1 tittle='专业代号信息'
2 print(tittle.center(50,'-'))
3 code_majors={8326:'地信类',8329:'计算机类',8330:'气科类',8336:'防灾工程',8345:'海洋科学',8382:'气象工程'}
4 for key,value in code_majors.items():
5 print(f'{key}:{value}')
6 tittle2='学生专业查询'
7 print(tittle2.center(50,'-'))
8 while True:
9 x=input('请输入学号：')
10 if x=='#':
11 print('查询结束')
12 break
13 y=int(x[4:8])
14 if y in code_majors.keys():
15 print(f'专业是：{code_majors[y]}')
16 else:
17 print('不在这些专业中')
运行截图
实验任务5
源代码
1 import random
2 lucky_day=random.randint(1,31)
3 print('猜猜2023年5月哪一天会是你的lucky day')
4 day=int(input('你有三次机会，猜吧（1~31):'))
5 i=0
6 while i<2:
7 if day<1 or day>31:
8 print('地球上没有这一天，你是外星人吗？')
9 day=int(input('再猜：'))
10 i+=1
11 if day<lucky_day:
12 print('猜早啦，你的lucky day还没到呢')
13 day=int(input('再猜：'))
14 i+=1
15 if day>lucky_day:
16 print('猜晚啦，你的lucky day已经过去啦')
17 day=int(input('再猜：'))
18 i+=1
19 if day==lucky_day:
20 print('哇哦，猜中啦')
21 i+=1
22 if day!=lucky_day:
23 print('哇哦，次数用光啦！')
24 print(f'偷偷告诉你，你的lucky_day是{lucky_day}号。good luck')
运行截图
实验任务6
源代码
1 datas = {'2049777001': ['篮球', '羽毛球', '美食', '漫画'],
2 '2049777002': ['音乐', '旅行'],
3 '2049777003': ['马拉松', '健身', '游戏'],
4 '2049777004': [],
5 '2049777005': ['足球', '阅读'],
6 '2049777006': ['发呆', '闲逛'],
7 '2049777007': [],
8 '2049777008': ['书法', '电影'],
9 '2049777009': ['音乐', '阅读', '电影', '漫画'],
10 '2049777010': ['数学', '推理', '音乐', '旅行']
11 }
12 ls=[]
13 for value in datas.values():
14 for i in value:
15 ls.append(i)
16 h={}
17 for x in ls:
18 if x not in h:
19 h[x]=1
20 else:
21 h[x]+=1
22 lst1=list(hs.items())
23 lst2=[(value,key)for key,value in lst1]
24 for value,key in sorted(lst2,reverse=True):
25 print(f'{key}:{value}')
运行截图
实验任务7-1
源代码
1 print('欢迎使用家用电器销售系统！')
2
3 pro=[['0001','电视机','海尔',5999.00,20],
4 ['0002','冰箱','西门子',6998.00,15],
5 ['0003','洗衣机','小天鹅',1999.00,10],
6 ['0004','空调','格力',3900.00,0],
7 ['0005','热水器','格力',688.00,30],
8 ['0006','笔记本','联想',5699.00,10],
9 ['0007','微波炉','苏泊尔',480.00,33],
10 ['0008','投影仪','松下',1250.00,12],
11 ['0009','吸尘器','飞利浦',999.00,9]]
12
13 products_cart=[]
14
15 option=input('请选择您的操作：1-查看商品；2-购物；3-查看购物车；其他-结账')
16 while option in['1','2','3',]:
17 if option=='1':
18 print('产品和价格信息如下')
19 print('******************************************************************')
20 print('%-10s' % '编号', '%-10s' % '名称', '%-10s' % '品牌', '%-10s' % '价格', '%-10s' % '库存数量')
21 print('------------------------------------------------------------------')
22 for i in range(len(pro)):
23 print('%-10s'%pro[i][0],'%-10s'%pro[i][1],'%-10s'%pro[i][2],'%10.2f'%pro[i][3],'%10d'%pro[i][4])
24
25 print('------------------------------------------------------------------')
26 elif option=='2':
27 pro_id=input('请输入您要购买的产品编号：')
28 while pro_id not in [item[0]for item in pro]:
29 pro_id=input('编号不存在，请重新输入您要购买的产品编号：')
30 count=int(input('请输入您要购买的产品数量：'))
31 while count > pro[int(pro_id)-1][4]:
32 count=input('数量超出库存。请重新输入您要购买的产品数量：')
33 if pro_id not in [item[0] for item in products_cart]:
34 products_cart.append([pro_id,count])
35 else:
36 for i in range(len(products_cart)):
37 if products_cart[i][0]==pro_id:
38 products_cart[i][1]+=count
39 else:
40 print('购物车信息如下：')
41 print('******************************************************************')
42 print('%-10s'%'编号','%-10s'%'购买数量')
43 print('------------------------------------------------------------------')
44 for i in range(len(products_cart)):
45 print('%-10s'%products_cart[i][0],'%6d'%products_cart[i][1])
46 print('------------------------------------------------------------------')
47 option=input('操作成功！请选择您的操作：1-查看商品；2-购物；3-查看购物车；其他-结账。')
48
49 if len(products_cart)>0:
50 amount=0
51 for i in range(len(products_cart)):
52 pro_index=0
53 for j in range(len(pro)):
54 if pro[j][0]==products_cart[i][0]:
55 pro_index=j
56 break
57 price=pro[pro_index][3]
58 count=products_cart[i][1]
59 amount+=price*count
60 if 5000 < amount <= 10000:
61 amount=amount*0.95
62 elif 10000 < amount <= 20000:
63 amount = amount * 0.9
64 elif 20000 < amount :
65 amount = amount * 0.85
66 else:
67 amount=amount*1
68 print('购买成功，您需要支付%8.2f元'%amount)
69
70 print('谢谢您的光临，下次再见！')
运行截图
实验任务7-2
源代码
1 print('欢迎使用家用电器销售系统！')
2
3 pro=[['0001','电视机','海尔',5999.00,20],
4 ['0002','冰箱','西门子',6998.00,15],
5 ['0003','洗衣机','小天鹅',1999.00,10],
6 ['0004','空调','格力',3900.00,0],
7 ['0005','热水器','格力',688.00,30],
8 ['0006','笔记本','联想',5699.00,10],
9 ['0007','微波炉','苏泊尔',480.00,33],
10 ['0008','投影仪','松下',1250.00,12],
11 ['0009','吸尘器','飞利浦',999.00,9]]
12
13 products_cart=[]
14
15 option=input('请选择您的操作：1-查看商品；2-购物；3-查看购物车；其他-结账')
16 while option in['1','2','3',]:
17 if option=='1':
18 print('产品和价格信息如下')
19 print('******************************************************************')
20 print('{:<10} {:<10} {:<10} {:<10} {:<10}'.format('编号','名称','品牌','价格','库存数量'))
21 print('------------------------------------------------------------------')
22 for i in range(len(pro)):
23 print('{:<10}'.format(pro[i][0]), '{:<10}'.format(pro[i][1]), '{:<10}'.format(pro[i][2]),
24 '{:<10.2f}'.format(pro[i][3]),
25 '{:>10}'.format(pro[i][4]))
26
27 print('------------------------------------------------------------------')
28 elif option=='2':
29 pro_id=input('请输入您要购买的产品编号：')
30 while pro_id not in [item[0]for item in pro]:
31 pro_id=input('编号不存在，请重新输入您要购买的产品编号：')
32 count=int(input('请输入您要购买的产品数量：'))
33 while count > pro[int(pro_id)-1][4]:
34 count=input('数量超出库存。请重新输入您要购买的产品数量：')
35 if pro_id not in [item[0] for item in products_cart]:
36 products_cart.append([pro_id,count])
37 else:
38 for i in range(len(products_cart)):
39 if products_cart[i][0]==pro_id:
40 products_cart[i][1]+=count
41 else:
42 print('购物车信息如下：')
43 print('*****************************************************************')
44 print('{:<10} {:<10} '.format('编号','购买数量'))
45 print('-----------------------------------------------------------------')
46 for i in range(len(products_cart)):
47 print('{:10s}'.format(products_cart[i][0]),'{:6d}'.format(products_cart[i][1]))
48 print('-----------------------------------------------------------------')
49 option=input('操作成功！请选择您的操作：1-查看商品；2-购物；3-查看购物车；其他-结账。')
50
51 if len(products_cart)>0:
52 amount=0
53 for i in range(len(products_cart)):
54 pro_index=0
55 for j in range(len(pro)):
56 if pro[j][0]==products_cart[i][0]:
57 pro_index=j
58 break
59 price=pro[pro_index][3]
60 count=products_cart[i][1]
61 amount+=price*count
62 if 5000 < amount <= 10000:
63 amount=amount*0.95
64 elif 10000 < amount <= 20000:
65 amount = amount * 0.9
66 elif 20000 < amount :
67 amount = amount * 0.85
68 else:
69 amount=amount*1
70 print('购买成功您需要支付{:8.2f}元'.format(amount))
71 print('谢谢您的光临，下次再见！')
运行截图
实验任务8-1
源代码
1 print('欢迎使用家用电器销售系统！')
2
3 pro=[{'id':'0001','name':'电视机','brand':'海尔','price':5999.00,'count':20},
4 {'id':'0002','name':'冰箱','brand':'西门子','price':6998.00,'count':15},
5 {'id':'0003','name':'洗衣机','brand':'小天鹅','price':1999.00,'count':10},
6 {'id':'0004','name':'空调','brand':'格力','price':3900.00,'count':0},
7 {'id':'0005','name':'热水器','brand':'格力','price':688.00,'count':30},
8 {'id':'0006','name':'笔记本','brand':'联想','price':5699.00,'count':10},
9 {'id':'0007','name':'微波炉','brand':'苏泊尔','price':480.00,'count':33},
10 {'id':'0008','name':'投影仪','brand':'松下','price':1250.00,'count':12},
11 {'id':'0009','name':'吸尘器','brand':'飞利浦','price':999.00,'count':9}
12 ]
13
14 products_cart=[]
15
16 option=input('请选择您的操作：1-查看商品；2-购物；3-查看购物车；其他-结账')
17 while option in['1','2','3',]:
18 if option=='1':
19 print('产品和价格信息如下')
20 print('******************************************************************')
21 print('%-10s' % '编号', '%-10s' % '名称', '%-10s' % '品牌', '%-10s' % '价格', '%-10s' % '库存数量')
22 print('------------------------------------------------------------------')
23 for i in range(len(pro)):
24 print('%-10s'%pro[i]['id'],'%-10s'%pro[i]['name'],'%-10s'%pro[i]['brand'],'%10.2f'%pro[i]['price'],'%10d'%pro[i]['count'])
25 print('------------------------------------------------------------------')
26 elif option == '2':
27 pro_id = input('请输入您要购买的产品编号：')
28 while pro_id not in [item['id'] for item in pro]:
29 pro_id = input('编号不存在，请重新输入您要购买的产品编号：')
30 count=int(input('请输入您要购买的产品数量：'))
31 while count > pro[int(pro_id)-1]['count']:
32 count=input('数量超出库存。请重新输入您要购买的产品数量：')
33 if pro_id not in [item['id'] for item in products_cart]:
34 products_cart.append({'id':pro_id,'count':count})
35 else:
36 for i in range(len(products_cart)):
37 if products_cart[i].get('id')==pro_id:
38 products_cart[i]['count']+=count
39
40 for i in range(len(pro)) :
41 if pro[i]['id']==pro_id:
42 pro[i]['count']-=count
43 else:
44 print('购物车信息如下：')
45 print('******************************************************************')
46 print('%-10s'%'编号','%-10s'%'购买数量')
47 print('------------------------------------------------------------------')
48 for i in range(len(products_cart)):
49 print('%-10s'%products_cart[i]['id'],'%6d'%products_cart[i]['count'])
50 print('------------------------------------------------------------------')
51 option = input('操作成功！请选择您的操作：1-查看商品；2-购物；3-查看购物车；其他-结账。')
52
53 if len(products_cart)>0:
54 amount=0
55 for i in range(len(products_cart)):
56 pro_index=0
57 for j in range(len(pro)):
58 if pro[j]['id']==products_cart[i]['id']:
59 pro_index=j
60 break
61 price=pro[pro_index]['price']
62 count=products_cart[i]['count']
63 amount+=price*count
64 if 5000 < amount <= 10000:
65 amount = amount * 0.95
66 elif 10000 < amount <= 20000:
67 amount = amount * 0.9
68 elif 20000 < amount:
69 amount = amount * 0.85
70 else:
71 amount = amount * 1
72 print('购买成功，您需要支付%8.2f元' % amount)
73 print('谢谢您的光临，下次再见！')
运行截图
实验任务8-2
源代码
1 print('欢迎使用家用电器销售系统！')
2 pro=[{'id':'0001','name':'电视机','brand':'海尔','price':5999.00,'count':20},
3 {'id':'0002','name':'冰箱','brand':'西门子','price':6998.00,'count':15},
4 {'id':'0003','name':'洗衣机','brand':'小天鹅','price':1999.00,'count':10},
5 {'id':'0004','name':'空调','brand':'格力','price':3900.00,'count':0},
6 {'id':'0005','name':'热水器','brand':'格力','price':688.00,'count':30},
7 {'id':'0006','name':'笔记本','brand':'联想','price':5699.00,'count':10},
8 {'id':'0007','name':'微波炉','brand':'苏泊尔','price':480.00,'count':33},
9 {'id':'0008','name':'投影仪','brand':'松下','price':1250.00,'count':12},
10 {'id':'0009','name':'吸尘器','brand':'飞利浦','price':999.00,'count':9}
11 ]
12 products_cart=[]
13 option=input('请选择您的操作：1-查看商品；2-购物；3-查看购物车；其他-结账')
14 while option in['1','2','3',]:
15 if option=='1':
16 print('产品和价格信息如下')
17 print('******************************************************************')
18 print('{:<10} {:<10} {:<10} {:<10} {:<10}'.format('编号','名称','品牌','价格','库存数量'))
19 print('------------------------------------------------------------------')
20 for i in range(len(pro)):
21 print('{:<10}'.format(pro[i]['id']), '{:<10}'.format(pro[i]['name']), '{:<10}'.format(pro[i]['brand']),
22 '{:<10.2f}'.format(pro[i]['price']),
23 '{:>10}'.format(pro[i]['count']))
24 print('------------------------------------------------------------------')
25 elif option == '2':
26 pro_id = input('请输入您要购买的产品编号：')
27 while pro_id not in [item['id'] for item in pro]:
28 pro_id = input('编号不存在，请重新输入您要购买的产品编号：')
29 count=int(input('请输入您要购买的产品数量：'))
30 while count > pro[int(pro_id)-1]['count']:
31 count=input('数量超出库存。请重新输入您要购买的产品数量：')
32 if pro_id not in [item['id'] for item in products_cart]:
33 products_cart.append({'id':pro_id,'count':count})
34 else:
35 for i in range(len(products_cart)):
36 if products_cart[i].get('id')==pro_id:
37 products_cart[i]['count']+=count
38
39 for i in range(len(pro)) :
40 if pro[i]['id']==pro_id:
41 pro[i]['count']-=count
42 else:
43 print('购物车信息如下：')
44 print('******************************************************************')
45 print('{:<10} {:<10} '.format('编号','购买数量'))
46 print('------------------------------------------------------------------')
47 for i in range(len(products_cart)):
48 print('{:10s}'.format(products_cart[i]['id']),'{:6d}'.format(products_cart[i]['count']))
49 print('------------------------------------------------------------------')
50 option = input('操作成功！请选择您的操作：1-查看商品；2-购物；3-查看购物车；其他-结账。')
51 if len(products_cart)>0:
52 amount=0
53 for i in range(len(products_cart)):
54 pro_index=0
55 for j in range(len(pro)):
56 if pro[j]['id']==products_cart[i]['id']:
57 pro_index=j
58 break
59 price=pro[pro_index]['price']
60 count=products_cart[i]['count']
61 amount+=price*count
62 if 5000 < amount <= 10000:
63 amount = amount * 0.95
64 elif 10000 < amount <= 20000:
65 amount = amount * 0.9
66 elif 20000 < amount:
67 amount = amount * 0.85
68 else:
69 amount = amount * 1
70 print('购买成功您需要支付{:8.2f}元'.format(amount))
71 print('谢谢您的光临，下次再见！')
运行结果
标签：语句,count,pro,编程,数据类型,cart,products,print,id From： https://www.cnblogs.com/zyj-/p/17332826.html