实验5 文件应用编程

实验任务6：

 task6.py

 1 with open('data6.csv', 'r', encoding='gbk') as f:
 2     old_data = f.read().split('\n')
 3 del old_data[0]
 4 processed_data = []
 5 for i in range(len(old_data)):
 6     if eval(old_data[i]) + 0.5 >= int(eval(old_data[i])) + 1:
 7         processed_data.append(str(int(eval(old_data[i])) + 1))
 8     else:
 9         processed_data.append(str(int(eval(old_data[i]))))
10 title = ['原始数据', '四舍五入后数据']
11 new = []
12 for i in range(len(old_data)):
13     new.append([old_data[i], processed_data[i]])
14 with open('data6_processed.csv','w',encoding = 'gbk') as f:
15     f.write(','.join(title)+'/n')
16     for i in new:
17         f.write(','.join(i) + '\n')
18 print('原始数据:')
19 print(old_data)
20 print(f'四舍五入后数据：')
21 print(new)

运行结果截图

 实验任务7

task7.py

 1 with open('data7.csv','r',encoding='gbk') as f:
 2     data = f.read().split('\n')
 3 
 4 del data[0]
 5 lsta = []
 6 lstb = []
 7 for i in data:
 8     lst1 = i.split(',')
 9     if lst1[2] == 'Acting':
10         lsta.append(lst1)
11     else:
12         lstb.append(lst1)
13 
14 lstb.sort(key=lambda x:x[-1],reverse = True)
15 lsta.sort(key=lambda x:x[-1],reverse = True)
16 info = lsta + lstb
17 title = ['学号','姓名','专业','分数']
18 
19 with open('data7_processed.csv','w',encoding='gbk') as f:
20     f.write(','.join(title)+'\n')
21     for items in info:
22         f.write(','.join(items)+'\n')
23 
24 print('{:<10}'.format(title[0]),'{:<10}'.format(title[1]),'{:<10}'.format(title[2]),'{:<15}'.format(title[3]))
25 
26 for i in info:
27     print('{:<10}'.format(i[0]),'{:<10}'.format(i[1]),'{:<10}'.format(i[2]),'{:<15}'.format(i[3]))

运行结果截图

 实验任务8

task8.py

 1 lines = 0
 2 words = 0
 3 sum1 = 0
 4 space = 0
 5 with open('hamlet.txt','r',encoding='utf-8') as f:
 6     for line in f:
 7         word = line.split()
 8         lines += 1
 9         words += len(word)
10         sum1 += len(line)
11         for i in line:
12             if i == ' ':
13                 space += 1
14             else:
15                 pass
16 print('hamlet.txt粗滤统计:')
17 print(f'行数:{lines}')
18 print(f'单词数:{words}')
19 print(f'字符数:{sum1}')
20 print(f'空格数:{space}')
21 
22 with open('hamlet.txt','r',encoding = 'utf-8') as f:
23     text = f.readlines()
24 
25 for i in range(len(text)):
26     text[i] = str(i+1) + ' ' + text[i]
27 
28 with open('hamlet_with_line_number.txt','w',encoding = 'utf-8') as f:
29     f.writelines(text)

运行结果截图

 实验任务9

task9.py

 1 def is_valid(sfz):
 2     if len(sfz) != 18:
 3         return False
 4     elif (sfz[:-1].isnumeric() and sfz[-1] == 'X') or sfz.isnumeric():
 5         return True
 6     else:
 7         return False
 8 
 9 
10 with open('data9_id.txt','r',encoding='utf-8') as f:
11     data = f.read().split('\n')
12 del data[0]
13 data2 = []
14 data3 =[]
15 print('姓名,出生日期,年龄')
16 
17 for i in data:
18     lst = i.split(',')
19     data2.append(lst)
20 lst2 = []
21 
22 for i in data2:
23     if is_valid(i[1]) == True:
24         name = i[0]
25         btd = i[1][6:14]
26         age = str(2023 - int(i[1][6:10]))
27         lst2.append([name,btd,age])
28 lst2.sort(key=lambda x:x[2],reverse=True)
29 
30 for i in lst2:
31     print(i[0],end=',')
32     print(f'{i[1][:4]}-{i[1][4:6]}-{i[1][6:8]}',end=',')
33     print(i[2])

运行结果截图

 实验任务10

task10_1.py

 1 with open('data10_stu.txt','r',encoding='utf-8') as f:
 2     data = f.readlines()
 3 
 4 n = int(input('输入随机抽点人数:'))
 5 import random
 6 x = []
 7 x2 = ''
 8 counts = 0
 9 while counts < n:
10     new = random.randint(0, len(data) - 1)
11     if new in x:
12         new = random.randint(0, len(data) - 1)
13     else:
14         counts +=1
15         x.append(new)
16 for i in range(n):
17     print(data[x[i]])
18     x2 += data[x[i]]
19 
20 with open('20230602.txt','w',encoding='utf-8') as f:
21     f.writelines(x2)

运行结果截图

 task10_2.py

 1 with open('data10_stu.txt','r',encoding='utf-8') as f:
 2     data = f.readlines()
 3 print('{:*^40}'.format('抽点开始'))
 4 n = int(input('输入随机抽点人数:'))
 5 import random
 6 x = []
 7 sum1 = 0
 8 x2 = ''
 9 while n != 0:
10     counts = 0
11     while counts < n:
12         new = random.randint(0, len(data) - 1)
13         if new in x:
14             new = random.randint(0, len(data) - 1)
15         else:
16             counts +=1
17             x.append(new)
18     for i in range(sum1,sum1+n):
19         print(data[x[i]])
20         x2 += data[x[i]]
21     sum1 += n
22     n = int(input('输入随机抽点人数:'))
23 
24 with open('20230602.txt','w',encoding='utf-8') as f:
25     f.writelines(x2)
26 
27 print('{:*^40}'.format('抽点结束'))

运行结果截图