python 工具 字串轉numpy浮點數組

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不同的數字之間使用 空格“ ”，“$”,"*"等隔開，支援帶小數點的字串
NumArray=str2num(LineString,comment=‘#‘)
將字串中的所有非Double類型的字元全部替換成空格
 以‘#‘開頭直至行尾的內容被清空
 返回一維numpy.array數組

import numpyimport scipydef 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 NumArrayif __name__ == "__main__":    str = input("Enter your input: ");    donser=str2num(str)    print(donser)

 

python 工具 字串轉numpy浮點數組