实验5文件应用编程

1.实验任务1

task1_1.py

1 with open('data1_1.txt','r',encoding='utf-8')as f:
2     data=f.readlines()
3 
4 n=0
5 for line in data:
6     if line.strip('\n')=='':
7         continue
8     n+=1
9 print(f'共{n}行')

 

task1_2.py

1 with open('data1_1.txt','r',encoding='utf-8')as f:
2     n=0
3     for line in f:
4         if line.strip('\n')=='':
5             continue
6         n+=1
7 print(f'共{n}行')

 

 

task1_3.py

1 with open('data1_2.txt','r',encoding='utf-8')as f:
2     n=0
3     for line in f:
4         if line.strip()=='':
5             continue
6         n+=1
7 print(f'共{n}行')

 

task1_4.py

1 with open('data1_2.txt','r',encoding='utf-8')as f:
2     n=0
3     for line in f:
4         if line.isspace():
5             continue
6         n+=1
7 print(f'共{n}行')

 

 

2.实验任务2

1 with open('data2.txt','r',encoding='utf-8')as f:
2     data=f.read().split('\n')
3 unique_line=[]
4 for line in data:
5     if data.count(line)==1:
6         unique_line.append(line)
7 print(f'共{len(unique_line)}独特行')
8 for i in unique_line:
9     print(i)

 

3.实验任务3

 1 with open('data3.txt', 'r', encoding = 'utf-8') as f:
 2     data = f.read().split('\n')
 3 data0=data.copy()
 4 for s in range(len(data0)):
 5     data0[s]=data0[s]+'\t'
 6 print(data0)
 7 for i in range(1,len(data)):
 8     data[i]=eval(data[i])
 9     if data[i]-int(data[i])>=0.5:
10         data[i]=int(data[i])+1
11     else:
12         data[i]=int(data[i])
13 data[0]='四舍五入后数据'
14 for j in range(len(data)):
15     data[j]=str(data[j])+'\n'
16 print(data)
17 data2=[]
18 for x,y in zip(data0,data):
19     z=x+y
20     data2.append(z)
21 print(data2)
22 with open('data3.txt', 'w', encoding = 'utf-8') as f:
23     f.write(''.join(data2))

 

 

4.实验4

 1   with open('data4.txt','r',encoding='utf-8')as f:
 2       with open('data4_processed.txt','w',encoding='utf-8')as f1:
 3           data=f.readlines()
 4           data1=[i.strip('\n').split('\t') for i in data]
 5           x=data1.pop(0)
 6           data2=[sorted(data1,key=lambda x: (x[2], -int(x[3])))]
 7           print('\t\t'.join(x))
 8           f1.write('\t\t'.join(x)+'\n')
 9           for i in data2:
10              for j in i:
11                  print('\t'.join(j))
12                  f1.write('\t'.join(j)+'\n')

 

 

5.实验5

 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 @ 2022-05-17 13:04  张满月的衣橱  阅读(11)  评论(2编辑  收藏  举报