从以 Python 中的字符串开头的文本文件的特定行中提取数字

Question

我正在编写一个代码，我需要从文本文件中读取数据，并从中提取特定的数字。 我已经尝试过 numpy loadtxt 和 genfromtxt，但仍在努力寻找答案。 这是我需要从中提取数据的文件示例：

    #
    #Text
    #
    # =============================
    # Text
    # Text
    # Text
    # Text
    # Text
    # =============================
    /gps/ene/type Arb
    /gps/hist/type arb
    /gps/hist/point   9.200000E-04   1.835400E+11
    /gps/hist/point   1.200000E-03   1.577700E+11
    /gps/hist/point   1.600000E-03   1.348800E+11
    /gps/hist/point   2.100000E-03   1.137300E+11
    /gps/hist/point   2.700000E-03   9.759600E+10
    /gps/hist/point   3.500000E-03   8.348800E+10
    /gps/hist/point   4.500000E-03   6.868300E+10
    /gps/hist/point   5.900000E-03   5.317300E+10
    /gps/hist/point   7.700000E-03   3.917900E+10
    /gps/hist/point   1.000000E-02   2.723300E+10
    /gps/hist/point   1.300000E-02   1.762600E+10
    /gps/hist/point   1.700000E-02   1.058500E+10
    /gps/hist/point   3.000000E-02   3.548700E+09
    /gps/hist/point   6.100000E-02   1.274400E+09
    /gps/hist/point   8.900000E-02   5.074400E+08
    /gps/hist/point   1.300000E-01   1.705900E+08
    /gps/hist/point   1.800000E-01   7.722800E+07
    /gps/hist/point   2.700000E-01   2.671600E+07
    /gps/hist/point   4.000000E-01   9.265800E+06
    /gps/hist/point   6.100000E-01   2.225000E+06
    /gps/hist/point   9.100000E-01   6.600100E+05
    /gps/hist/point   1.280000E+00   2.264300E+05
    /gps/hist/point   1.990000E+00   4.632400E+04
    /gps/hist/point   2.440000E+00   1.928300E+04
    /gps/hist/point   3.070000E+00   6.847300E+03
    /gps/hist/point   3.970000E+00   1.584400E+03
    /gps/hist/point   5.200000E+00   0.000000E+00

    #
    #Normalisation
    #
    /control/alias  NORM_FACTOR_SPECTRUM "   2.945935E+17 "
    /control/alias  NORM_FACTOR_ANGULAR "   2.500000E-01 "

我只需要获取以“/gps/hist/point”开头的行之后的数字，并将它们放入二维数组中。 有什么解决办法吗？

提前谢谢了！

Answer 1

myList = []

lines = [line for line in open('myfile.txt', 'r')]
for line in lines:
    if line.startswith('/gps/hist/point'):
        myList.append([line.split()[1], line.split()[2])