record.txt分别存入boy和girl.txt的作业中，这样写为啥会报错呀？

宝宝包包抱抱

作业题，这样写就会报错ValueError: I/O operation on closed file，如果把函数全部撤掉，语句带入就不会报错。
为什么捏？

代码如下：

带函数，会报错：

1. count=0
   
2. number=['1','2','3']
   
3. 
   
4. def open_new_files(count):
   
5.     file_name_boy =str('boy_'+ number[count] +'.txt')
   
6.     file_name_girl =str('girl_'+ number[count] + '.txt')
   
7.     boy_file = open(file_name_boy,'w')
   
8.     girl_file=open(file_name_girl,'w')
   
9. 
   
10. 
    
11. open_new_files(count)
    
12. f_read = open('record.txt','r')
    
13. for each_line in f_read:
    
14.     if each_line[2] == '鱼':
    
15.         boy_file.write(each_line.split(':')[1])
    
16.         boy_file.write('\n')
    
17.     if each_line[2] == '服':
    
18.         girl_file.write(each_line.split(':')[1])     #为这里会报错：ValueError: I/O operation on closed file.
    
19.         girl_file.write('\n')
    
20.     if each_line[2]=='=':
    
21.         boy_file.close()
    
22.         girl_file.close()
    
23.         count+=1
    
24.         open_new_files(count)
    
25. 
    
26. open_new_files(count)
    
27. f_read.close()

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不带函数，冗长，但是不报错：

1. count=0
   
2. number=['1','2','3','4,','5','6','7','8','9','0']
   
3. 
   
4. def open_new_files(count):
   
5.     file_name_boy =str('boy_'+ number[count] +'.txt')
   
6.     file_name_girl =str('girl_'+ number[count] + '.txt')
   
7.     boy_file = open(file_name_boy,'w')
   
8.     girl_file=open(file_name_girl,'w')
   
9. 
   
10. 
    
11. file_name_boy =str( 'boy_'+ number[count] +'.txt')
    
12. file_name_girl =str('girl_' + number[count] + '.txt')
    
13. boy_file = open(file_name_boy,'w')
    
14. girl_file = open(file_name_girl,'w')
    
15. 
    
16. f_read = open('record.txt','r')
    
17. 
    
18. for each_line in f_read:
    
19.     if each_line[2] == '鱼':
    
20.         boy_file.write(each_line.split(':')[1])
    
21.         boy_file.write('\n')
    
22.     if each_line[2] == '服':
    
23.         girl_file.write(each_line.split(':')[1])
    
24.         girl_file.write('\n')
    
25.     if each_line[2]=='=':
    
26.         boy_file.close()
    
27.         girl_file.close()
    
28.         count+=1
    
29.         file_name_boy =str('boy_'+ number[count] +'.txt')
    
30.         file_name_girl =str('girl_'+ number[count] + '.txt')
    
31.         boy_file = open(file_name_boy,'w')
    
32.         girl_file=open(file_name_girl,'w')
    
33. 
    
34. boy_file.close()
    
35. girl_file.close()
    
36. f_read.close()

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zltzlt

试试这样：

1. count = 0
   
2. number = ['1', '2', '3']
   
3. 
   
4. 
   
5. def open_new_files(count):
   
6.     file_name_boy = str('boy_' + number[count] + '.txt')
   
7.     file_name_girl = str('girl_' + number[count] + '.txt')
   
8.     boy_file = open(file_name_boy, 'w')
   
9.     girl_file = open(file_name_girl, 'w')
   
10.     return boy_file, girl_file
    
11. 
    
12. 
    
13. boy_file, girl_file = open_new_files(count)
    
14. f_read = open('record.txt', 'r')
    
15. for each_line in f_read:
    
16.     if each_line[2] == '鱼':
    
17.         boy_file.write(each_line.split(':')[1])
    
18.         boy_file.write('\n')
    
19.     if each_line[2] == '服':
    
20.         girl_file.write(each_line.split(':')[1])
    
21.         girl_file.write('\n')
    
22.     if each_line[2] == '=':
    
23.         boy_file.close()
    
24.         girl_file.close()
    
25.         count += 1
    
26.         boy_file, girl_file = open_new_files(count)
    
27. 
    
28. f_read.close()

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宝宝包包抱抱

zltzlt 发表于 2020-1-8 21:11
试试这样：

我试了一下，还是会报错。。
报错信息是这样的：
  File "/Users/paozi/PycharmProjects/fishc/work_30.py", line 15, in <module>
    for each_line in f_read:
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/codecs.py", line 322, in decode
    (result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xbf in position 2: invalid start byte

zltzlt

宝宝包包抱抱 发表于 2020-1-10 18:05
我试了一下，还是会报错。。
报错信息是这样的：
  File "/Users/paozi/PycharmProjects/fishc/work_30 ...

那这样：

1. count = 0
   
2. number = ['1', '2', '3']
   
3. 
   
4. 
   
5. def open_new_files(count):
   
6.     file_name_boy = str('boy_' + number[count] + '.txt')
   
7.     file_name_girl = str('girl_' + number[count] + '.txt')
   
8.     boy_file = open(file_name_boy, 'w')
   
9.     girl_file = open(file_name_girl, 'w')
   
10.     return boy_file, girl_file
    
11. 
    
12. 
    
13. boy_file, girl_file = open_new_files(count)
    
14. f_read = open('record.txt', 'r', encoding='utf-8')
    
15. for each_line in f_read:
    
16.     if each_line[2] == '鱼':
    
17.         boy_file.write(each_line.split(':')[1])
    
18.         boy_file.write('\n')
    
19.     if each_line[2] == '服':
    
20.         girl_file.write(each_line.split(':')[1])
    
21.         girl_file.write('\n')
    
22.     if each_line[2] == '=':
    
23.         boy_file.close()
    
24.         girl_file.close()
    
25.         count += 1
    
26.         boy_file, girl_file = open_new_files(count)
    
27. 
    
28. f_read.close()

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