python 工具 字符串转numpy浮点数组的实现

import numpy
import scipy
def str2num(LineString,comment=\'#\'):
 
  from io import StringIO as StringIO
  import re,numpy
 
  NumArray=numpy.empty([0],numpy.int16)
  NumStr=LineString.strip()
  #~ ignore comment string
  for cmt in comment:

    CmtRe=cmt+\'.*$\'
    NumStr=re.sub(CmtRe, \" \", NumStr.strip(), count=0, flags=re.IGNORECASE)
 
  #~ delete all non-number characters,replaced by blankspace.
  NumStr=re.sub(\'[^0-9.e+-]\', \" \", NumStr, count=0, flags=re.IGNORECASE)
 
  #~ Remove incorrect combining-characters for double type.
  NumStr=re.sub(\'[.e+-](?=\\s)\', \" \", NumStr.strip(), count=0, flags=re.IGNORECASE)
  NumStr=re.sub(\'[.e+-](?=\\s)\', \" \", NumStr.strip(), count=0, flags=re.IGNORECASE)
  NumStr=re.sub(\'[e+-]$\', \" \", NumStr.strip(), count=0, flags=re.IGNORECASE)
  NumStr=re.sub(\'[e+-]$\', \" \", NumStr.strip(), count=0, flags=re.IGNORECASE)
 
  if len(NumStr.strip())>0:
    StrIOds=StringIO(NumStr.strip())
    NumArray= numpy.genfromtxt(StrIOds)
 
  return NumArray


if __name__ == \"__main__\":
  str = input(\"Enter your input: \");
  donser=str2num(str)
  print(donser)