python - 正则表达式用 Python 中的英文逗号替换中文标点符号

Question

标签： pythonregexpunctuation

Answer 1

One way to do with re module

import re
str='上海，北京、武汉；重庆。欢迎你！你好'
s = re.sub(r'[^\w\s]',',',str)
print(s)

Output:

上海,北京,武汉,重庆,欢迎你,你好

Explanation,

[^\w\s]- Match a single character Not present in the list below-

1. \w matches any word character (equal to [a-zA-Z0-9_])
2. \s matches any whitespace character (equal to [\r\n\t\f\v ])