re.sub有什么举例吗?

import re

content ='Extra stings Hello 1234567 World_This is a Regex Demo Extra stings 

content=re.sub('\d+',", content) 

print(content)

Extra stings Hello WorldThis is a Regex Demo Extra stings


import re

content ='Extra stings Hello 1234567 World_This is a Regex Demo Extra stings 

content=re.sub('\d+，‘Replacement’，content) 

print(content)

Extra stings Hello Replacement World_This is a Regex Demo Extra stings