Question

我正在尝试在出现特定字符时拆分python字符串。

例如：

mystring="I want to eat an apple. \n 12345 \n 12 34 56"

我想要的输出是带有

的字符串

[["I want to eat an apple"], [12345], [12, 34, 56]]

Answer 1

>>> mystring.split(" \n ")
['I want to eat an apple.', '12345', '12 34 56']

如果您特别希望每个字符串都在其自己的列表中：

>>> [[s] for s in mystring.split(" \n ")]
[['I want to eat an apple.'], ['12345'], ['12 34 56']]

Answer 2

mystring = "I want to eat an apple. \n 12345 \n 12 34 56"
# split and strip the lines in case they all dont have the format ' \n '
split_list = [line.strip() for line in mystring.split('\n')] # use [line.strip] to make each element a list...
print(split_list)

输出：

['I want to eat an apple.', '12345', '12 34 56']

Answer 3

对此问题使用split()，strip()和re

首先通过nextline分割字符串，然后剥离每个字符串，然后通过re从字符串中提取数字，如果长度大于一个，则替换该项目

import re
mystring="I want to eat an apple. \n 12345 \n 12 34 56" 
l = [i.strip() for i in mystring.split("\n")]
for idx,i in enumerate(l):
  if len(re.findall(r'\d+',i))>1:
    l[idx] = re.findall(r'\d+',i)

print(l)
#['I want to eat an apple.', '12345', ['12', '34', '56']]

通过特定标识拆分python字符串

3 个答案: