我有一个顶级名称的数据文件：
position avgx avgy avgz stdx stdy stdt avgG nemixrms nemiyrms nemirrms rmax
2.800e+00 -4.997e-05 -1.373e-04 2.800e+00 2.812e-03 2.819e-03 4.641e-10 1.684e+00 7.433e-06 7.377e-06 7.404e-06 1.224e-02
2.750e+00 -3.592e-05 -1.040e-04 2.750e+00 2.110e-03 2.129e-03 4.634e-10 1.684e+00 6.412e-06 6.361e-06 6.386e-06 9.652e-03
2.700e+00 -2.209e-05 -7.128e-05 2.700e+00 1.457e-03 1.485e-03 4.627e-10 1.684e+00 5.346e-06 5.338e-06 5.342e-06 7.083e-03
2.650e+00 -8.730e-06 -4.000e-05 2.650e+00 8.753e-04 9.082e-04 4.620e-10 1.684e+00 4.352e-06 4.439e-06 4.395e-06 4.591e-03
2.600e+00 4.074e-06 -1.208e-05 2.600e+00 4.273e-04 4.515e-04 4.613e-10 1.683e+00 3.728e-06 3.968e-06 3.846e-06 3.210e-03
2.590e+00 6.587e-06 -7.411e-06 2.590e+00 3.688e-04 3.880e-04 4.612e-10 1.683e+00 3.675e-06 3.941e-06 3.805e-06 3.183e-03
2.550e+00 1.580e-05 5.137e-06 2.550e+00 3.594e-04 3.587e-04 4.606e-10 1.683e+00 3.741e-06 4.020e-06 3.878e-06 3.100e-03
2.500e+00 2.600e-05 1.130e-05 2.500e+00 7.696e-04 7.677e-04 4.600e-10 1.684e+00 4.343e-06 4.436e-06 4.389e-06 3.939e-03
2.450e+00 3.586e-05 1.554e-05 2.450e+00 1.358e-03 1.353e-03 4.593e-10 1.684e+00 4.701e-06 4.760e-06 4.730e-06 5.477e-03
2.400e+00 4.561e-05 1.929e-05 2.400e+00 2.027e-03 2.018e-03 4.587e-10 1.684e+00 4.907e-06 4.993e-06 4.874e-06 7.949e-03
2.350e+00 5.562e-05 2.210e-05 2.350e+00 2.746e-03 2.731e-03 4.580e-10 1.684e+00 8.541e-06 8.710e-06 4.954e-06 1.051e-02
2.250e+00 7.616e-05 -3.145e-06 2.250e+00 4.084e-03 4.011e-03 4.567e-10 1.684e+00 1.881e-04 1.882e-04 5.092e-06 1.489e-02
2.200e+00 6.767e-05 -2.592e-05 2.200e+00 4.086e-03 4.011e-03 4.561e-10 1.684e+00 8.753e-05 8.755e-05 5.263e-06 1.456e-02
2.150e+00 5.840e-05 -2.875e-05 2.150e+00 3.881e-03 3.818e-03 4.555e-10 1.684e+00 1.502e-05 1.496e-05 5.555e-06 1.345e-02
2.050e+00 4.430e-05 -2.326e-05 2.050e+00 3.528e-03 3.479e-03 4.543e-10 1.684e+00 6.266e-06 6.305e-06 6.283e-06 1.120e-02
2.000e+00 3.752e-05 -1.994e-05 2.000e+00 3.393e-03 3.350e-03 4.537e-10 1.684e+00 6.618e-06 6.664e-06 6.639e-06 1.009e-02
1.950e+00 3.073e-05 -1.661e-05 1.950e+00 3.287e-03 3.249e-03 4.531e-10 1.684e+00 6.944e-06 6.988e-06 6.964e-06 9.006e-03
1.900e+00 2.391e-05 -1.328e-05 1.900e+00 3.211e-03 3.180e-03 4.526e-10 1.684e+00 7.227e-06 7.265e-06 7.243e-06 7.935e-03
我正在使用numpy.genfromtxt将此数据文件导入为
screendata=genfromtxt('../screen.txt',delimiter=',',names=True,dtype=None)
如果我打印screendata，它会告诉我：
[ (b'2.800e+00 -4.997e-05 -1.373e-04 2.800e+00 2.812e-03 2.819e-03 4.641e-10 1.684e+00 7.433e-06 7.377e-06 7.404e-06 1.224e-02',)
(b'2.750e+00 -3.592e-05 -1.040e-04 2.750e+00 2.110e-03 2.129e-03 4.634e-10 1.684e+00 6.412e-06 6.361e-06 6.386e-06 9.652e-03',)
(b'2.700e+00 -2.209e-05 -7.128e-05 2.700e+00 1.457e-03 1.485e-03 4.627e-10 1.684e+00 5.346e-06 5.338e-06 5.342e-06 7.083e-03',)
(b'2.650e+00 -8.730e-06 -4.000e-05 2.650e+00 8.753e-04 9.082e-04 4.620e-10 1.684e+00 4.352e-06 4.439e-06 4.395e-06 4.591e-03',)
(b'2.600e+00 4.074e-06 -1.208e-05 2.600e+00 4.273e-04 4.515e-04 4.613e-10 1.683e+00 3.728e-06 3.968e-06 3.846e-06 3.210e-03',)
(b'2.590e+00 6.587e-06 -7.411e-06 2.590e+00 3.688e-04 3.880e-04 4.612e-10 1.683e+00 3.675e-06 3.941e-06 3.805e-06 3.183e-03',)
(b'2.550e+00 1.580e-05 5.137e-06 2.550e+00 3.594e-04 3.587e-04 4.606e-10 1.683e+00 3.741e-06 4.020e-06 3.878e-06 3.100e-03',)
(b'2.500e+00 2.600e-05 1.130e-05 2.500e+00 7.696e-04 7.677e-04 4.600e-10 1.684e+00 4.343e-06 4.436e-06 4.389e-06 3.939e-03',)
我尝试获取colume数据，如：
screendata['position']
显示错误消息
print(screendata['position'])
ValueError: field named position not found
然后，我试过
print(screendata.dtype.names)
('position________avgx________avgy________avgz________stdx________stdy________stdt________avgG____nemixrms____nemiyrms____nemirrms________rmax',)
我怎么能将这种数据导入python，我可以在colume模式下操作？ 谢谢！