python简单浮点数匹配

>>> import re
>>> m=re.findall('\d+\.\d+','-A213330.00-0.13')
>>> m
['213330.00', '0.13']
>>> len(m)
2
>>> m=re.findall('[-]\d+\.\d+','-A213330.00-0.13')
>>> m
['-0.13']
>>> m=re.findall('[-]\d+\.\d+','-A213330.00 0.13')
>>> m
[]
>>> m=re.findall('\d+\.\d+','-A213330.00 0.13')
>>> m
['213330.00', '0.13']

>>>

>>> m=re.findall('-\d+\.\d+','-A213330.00-0.13')
>>> m
['-0.13']
>>>