Question

我正在尝试拆分逗号分隔的字符串，其中字段可能或 可能不会在他们周围加上引号。

有没有办法将引号定义为可选？

以下代码仅适用于引用字段。我正在使用python 2.7.11

import csv

temp = '"HELLO,WORLD",HELLO WORLD,END OF THE WORLD'

for i in csv.reader(temp):
    print('#next#')
    print(i)

输出

#next       
['HELLO,WORLD']    
#next#    
['', '']    
#next#    
['H'] 
#next#     
['E']    
...

期待的是

#next       
['HELLO,WORLD']    
#next       
['HELLO WORLD']    
#next       
['END OF THE WORLD']

Answer 1

来自csv module文档：

csv.reader(csvfile, dialect='excel', **fmtparams)
    Return a reader object which will iterate over lines in the given csvfile.
csvfile can be any object which supports the iterator protocol and
returns a string each time its next() method is called ..

因此，您需要将字符串列表传递给csv.reader来电为了得到正确的输出。

temp = ['"HELLO,WORLD",HELLO WORLD,END OF THE WORLD']

Python：如何使用带可选引号的csv reader拆分字符串

1 个答案: