3.实验任务3

 1 with open('data3.txt', 'r', encoding='utf-8') as f1:
 2     data3 = f1.read().split('\n')
 3     a = data3.pop(0)
 4     data1 = [eval(d) for d in data3]
 5     b = '四舍五入后数据'
 6     data2 = [round(i) for i in data1]
 7 print(f'{a}:\n{data1}')
 8 print(f'{b}:\n{data2}')
 9 data1.insert(0, a)
10 data2.insert(0, b)
11 c = [data1, data2]
12 with open('data3_processed.txt', 'w', encoding='utf-8') as f2:
13     for data in zip(*c):
14         f2.write('{0}\t{1}\n'.format(*data))

4.实验任务4

 1 with open('data4.txt', 'r+', encoding='utf-8') as f1:
 2     inf1 = f1.readlines()
 3     inf2 = [list(i.strip().split()) for i in inf1]
 4     a=inf2.pop(0)
 5     inf3 = sorted(inf2, key=(lambda x: [x[2], -int(x[3])]))
 6     inf3.insert(0,a)
 7     with open('data4_processed.txt ','w',encoding='utf-8')as f2:
 8         for m in inf3:
 9             f2.write('\t'.join(m)+'\n')
10             for n in m:
11                 print('%-5s\t'%n,end='')
12             print()

5.实验任务5

 1 with open('data5.txt','r+',encoding='utf-8')as f1:
 2     inf=f1.read()
 3     line = len(inf.splitlines())
 4     word = len(inf.split())
 5     string = len(inf)
 6     space=0
 7     for i in inf:
 8         if i==' ':
 9             space+=1
10     print(f'行数:{line}')
11     print(f'单词数:{word}')
12     print(f'空格数:{space}')
13     print(f'字符数:{string}')
14     with open('data5_with_line.txt', 'w', encoding='utf-8') as f2:
15         for n in range(line):
16             f2.write(str(n+1)+'  '+inf.split('\n')[n]+'\n')

实验总结：

谁来救救我，呜呜呜呜呜呜呜，真的好难（准备把自己埋了）,欸~