几周前，我开始学习python以编写程序，
目前我尝试从文件中提取一些信息，它看起来像这样：
MAEFILE: benopga1.01.mae
&gen
igeopt=1
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ifreq=1
ip24=2
nogas=2
iacc=1
&
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H12 20.6751990000 17.8633650000 15.8718730000
&
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24 2.434416E-04 1.327314E-01 -7.490323E-02 1.874819E-01
25 -1.504871E-04 1.714452E-04 -1.179780E-03 -2.325636E-04 3.220066E-01
26 1.568302E-04 -1.102295E-03 -3.573059E-03 -1.099444E-03 -6.529751E-02
27 -3.836369E-04 -5.860705E-04 -8.976903E-04 1.021072E-03 -8.867881E-02
28 1.218173E-05 3.024906E-04 2.516389E-04 -1.141836E-03 4.239541E-04
29 -1.441930E-04 -1.026389E-04 8.840927E-05 6.332547E-04 -1.291296E-03
30 -1.374519E-04 3.812079E-04 2.389330E-04 -8.747765E-04 -1.502824E-04
31 3.851771E-04 -1.639111E-04 -1.356532E-04 -3.111450E-04 -7.902321E-04
32 1.182647E-04 -2.347572E-04 -1.084055E-03 -1.576438E-04 2.115227E-04
33 -7.593839E-04 -1.667396E-04 -1.008961E-04 -1.123286E-05 5.825404E-04
34 -2.035376E-04 -8.011347E-04 3.153121E-04 4.611029E-04 -1.316073E-04
35 -9.809362E-04 5.440663E-04 6.513052E-05 -1.662642E-04 -2.997207E-04
36 5.655858E-04 -1.044500E-03 2.754315E-04 3.638921E-04 5.800512E-05
26
26 4.236930E-02
27 1.211680E-02 8.569162E-02
28 -1.245167E-03 5.853340E-04 7.688814E-02
29 -3.211526E-03 -1.073037E-03 3.035872E-03 3.637004E-02
30 -9.073261E-04 5.569719E-04 -7.721346E-02 -4.840140E-02 3.370049E-01
31 5.516888E-04 -1.052577E-03 7.862359E-04 -1.339463E-03 -2.253878E-04
32 8.382047E-05 2.822024E-04 -1.251478E-03 -3.643525E-03 -9.503755E-04
33 -1.807402E-04 3.462591E-04 -6.238417E-04 -7.053561E-04 3.763429E-04
34 -3.067637E-04 5.290655E-05 -2.494180E-04 1.374706E-04 -1.399704E-04
35 -1.022331E-03 -2.811845E-04 -2.047648E-04 2.343184E-04 1.575352E-04
36 -2.816129E-04 2.140399E-05 1.520584E-03 -2.731030E-04 -3.847069E-04
31
31 1.959794E-01
32 -7.942207E-02 6.628383E-02
33 1.329428E-01 -7.483048E-02 1.873301E-01
34 1.308904E-04 -1.106336E-03 -1.028018E-04 3.222324E-01
35 -9.751806E-04 -3.283255E-03 -1.006349E-03 -6.565566E-02 4.251950E-02
36 -6.224509E-04 -9.048575E-04 1.125719E-03 -8.805915E-02 1.207815E-02
36
36 8.527950E-02
&
我确实尝试使用pandas来查看文件和提取物在一个单独的文件中，下面是什么＆amp; zmat。我的意思是C1到H12行
import os
import pandas
import numpy
os.chdir ("D:\\Ubuntu\downloads")
dt =pandas.read_fwf ("ga1.01.in", header =None, sep = '\s+')
不幸的是，熊猫只能看到两列，我无法进一步了解 我计划为下面的线和hess做同样的事情。 这是对称矩阵的较低标准。
http://i.stack.imgur.com/u05ZE.png
在这种情况下为36x36，但它被5列保存，而行则被枚举。一旦我能够提取那部分，我仍然在解决方案中工作，我认为大熊猫是这个问题的一个很好的选举。如果有人可以给我一个想法从哪里开始，我将非常感谢你的帮助。
由于
答案 0 :(得分：0)
尝试使用此行读取C1到H11行的选项，跳过前11行，读取12行并指定每行的固定宽度字段范围。
dt =pandas.read_fwf ("ga1.01.in", header =None, skiprows=11, nrows=12, colspecs=[(0,5), (12,35), (36,61),(62,91)])