import  re
str ='one11two22three3four4'
pattern = re.compile(r'(\d+)')
print(re.findall(pattern,str))

str ='one11two22three3four4'
pattern = re.compile(r'(.+?)(\d+)')
print(re.findall(pattern,str))

 多多练习,爬虫的时候可以用到,能实现从哪里开始爬,爬到哪里