根据正则表达式使用中文逗号、中文句号、英文逗号、英文点号、英文感叹号、英文换行符号将该字符串分割成多个子串。
时间: 2024-01-01 16:03:52 浏览: 158
假设要分割的字符串为str,可以使用如下正则表达式:
```python
import re
pattern = r'[,。,.;!\n]'
result = re.split(pattern, str)
print(result)
```
解释一下正则表达式:
- `[,。,.;!\n]` 表示匹配中文逗号、中文句号、英文逗号、英文点号、英文感叹号、英文换行符号中的任意一个字符。
- `re.split(pattern, str)` 表示用正则表达式 pattern 对字符串 str 进行分割。
例如,对于字符串 "这是一个句子,这是另一个句子。This is a sentence; This is another sentence!\n这是第三个句子。",运行上面的代码会得到以下结果:
```
['这是一个句子', '这是另一个句子', 'This is a sentence', ' This is another sentence', '', '这是第三个句子', '']
```
可以看到,字符串被成功分割成了多个子串。其中,第5个子串是空字符串,因为在原字符串中有一个换行符号。
相关问题
令字符串 s='马丽于2022-4-29 10:10刊发了一首诗《Listen to me》,诗词的大意是:\n Mama you taught me to do the right things,\n So now you have to let your baby fly.\n You've given me everything that I will need,\n To make it through this crazy thing called life,\n Thank you Mum!' ,通过编写函数实现下述各题功能。 1 应用正则表达式判断该字符串是否包含0~9的数字和大小写英文字母。 2 根据正则表达式使用中文逗号、中文句号、英文逗号、英文点号、英文感叹号、英文换行符号将该字符串分割成多个子串。 3 应用正则表达式提取该字符串中的日期时间字符串。 4 应用正则表达式提取该字符串中的诗词名称。 5 应用正则表达式提取该字符串中的姓名。
1. 使用re模块判断字符串是否包含0~9的数字和大小写英文字母:
```python
import re
s = '马丽于2022-4-29 10:10刊发了一首诗《Listen to me》,诗词的大意是:\n Mama you taught me to do the right things,\n So now you have to let your baby fly.\n You\'ve given me everything that I will need,\n To make it through this crazy thing called life,\n Thank you Mum!'
pattern = re.compile('[0-9a-zA-Z]+')
result = pattern.findall(s)
if result:
print('字符串中包含数字和英文字母')
else:
print('字符串中不包含数字和英文字母')
```
2. 使用正则表达式将该字符串分割成多个子串:
```python
import re
s = '马丽于2022-4-29 10:10刊发了一首诗《Listen to me》,诗词的大意是:\n Mama you taught me to do the right things,\n So now you have to let your baby fly.\n You\'ve given me everything that I will need,\n To make it through this crazy thing called life,\n Thank you Mum!'
pattern = re.compile('[,,.。!!\n]')
result = pattern.split(s)
print(result)
```
3. 使用正则表达式提取该字符串中的日期时间字符串:
```python
import re
s = '马丽于2022-4-29 10:10刊发了一首诗《Listen to me》,诗词的大意是:\n Mama you taught me to do the right things,\n So now you have to let your baby fly.\n You\'ve given me everything that I will need,\n To make it through this crazy thing called life,\n Thank you Mum!'
pattern = re.compile('\d{4}-\d{1,2}-\d{1,2} \d{1,2}:\d{1,2}')
result = pattern.findall(s)
print(result)
```
4. 使用正则表达式提取该字符串中的诗词名称:
```python
import re
s = '马丽于2022-4-29 10:10刊发了一首诗《Listen to me》,诗词的大意是:\n Mama you taught me to do the right things,\n So now you have to let your baby fly.\n You\'ve given me everything that I will need,\n To make it through this crazy thing called life,\n Thank you Mum!'
pattern = re.compile('《(.+?)》')
result = pattern.findall(s)
print(result)
```
5. 使用正则表达式提取该字符串中的姓名:
```python
import re
s = '马丽于2022-4-29 10:10刊发了一首诗《Listen to me》,诗词的大意是:\n Mama you taught me to do the right things,\n So now you have to let your baby fly.\n You\'ve given me everything that I will need,\n To make it through this crazy thing called life,\n Thank you Mum!'
pattern = re.compile('[\u4e00-\u9fa5]{2,3}')
result = pattern.findall(s)
print(result)
```
用python根据正则表达式使用中文逗号、中文句号、英文逗号、英文点号、英文感叹号、英文换行符号将该字符串分割成多个子串
假设需要分割的字符串为text,可以使用re模块的split函数进行分割,具体代码如下:
```python
import re
text = "我喜欢吃苹果,梨子和香蕉。I like to eat apples, pears, and bananas. Wow! This is amazing!\n我还喜欢吃芒果。"
pattern = r"[,。,.\n!]"
result = re.split(pattern, text)
print(result)
```
输出结果为:
```
['我喜欢吃苹果', '梨子和香蕉', 'I like to eat apples', ' pears', ' and bananas', ' Wow', ' This is amazing', '', '我还喜欢吃芒果', '']
```
可以看到,使用正则表达式将字符串成功分割成了多个子串。其中,正则表达式"[,。,.\n!]"表示匹配中文逗号、中文句号、英文逗号、英文点号、英文感叹号和英文换行符号。re.split函数将text按照该正则表达式进行分割,并返回分割后的字符串列表。
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