## 实验5

 1 with open('data3.txt','r+',encoding='utf-8')as f:
2     a=[]
3     for i in f:
4         i=i.strip('\n')
5         a.append(i)
6 a.pop(0)
7 b=[eval(i) for i in a]
8 print(f'原始数据:\n{b}')
9 c=[round(eval(i)) for i in a]
10 print(f'四舍五入后数据:\n{c}')
11 with open('data3-1.txt','w',encoding='utf-8')as f:
12     w1=['原始数据']+[str(i) for i in a]
13     w2=['四舍五入后的数据']+[str(i) for i in c]
14     for i in range(len(a)):
15         f.write(f'{w1[i]}\t{w2[i]}\n')

 1 with open('data4.txt', 'r',encoding = 'utf-8') as f:
3 for i in range(1,len(data)):
4     data[i]=data[i].split('\t')
5 data1=data[1:].copy()
6 data1.sort(key=lambda x:(x[2],-int(x[3])),reverse = False)
7 data[0]+='\n'
8 for i in range(len(data1)):
9     for j in range(len(data1[i])):
10         if j==3:
11             data1[i][j]+='\n'
12         else:
13             data1[i][j]+='\t'
14     data[i+1]=''.join(data1[i])
15 with open('data6.txt', 'w',encoding = 'utf-8') as f:
16     f.writelines(data)
17 with open('data4.txt', 'r',encoding = 'utf-8') as f:
19 print(data)

 1 data=[]
2 word1=0
3 word2=0
4 word3=0
5 with open('data5.txt', 'r',encoding = 'utf-8') as f:
6     for i in f:
7         data.append(i)
8 for i in range(len(data)):
9    word1+=len(data[i].split(' '))
10    word2+=len(data[i])
11    word3+=data[i].count(' ')
12 print('行数：',len(data))
13 print('单词数：',word1)
14 print('字符数:',word2)
15 print('空格数',word3)
16 for i in range(len(data)):
17     data[i]=str(i+1)+' '+data[i]
18 with open('data5.txt', 'w',encoding = 'utf-8') as f:
19      f.writelines(data)

posted on 2022-05-16 09:22  蒜头小兲  阅读(11)  评论(2编辑  收藏  举报