Python:如何读取文件并在数组中存储某些列

这可行:

data = []
target = []
with open('faban.txt') as fobj:
    for line in fobj:
        row = line.split()
        data.append(row[:-1])
        target.append(row[-1])

现在:

>>> data
[['faban', '1', '0', '0.288'],
 ['faban', '2', '0', '0.243'],
 ['simulated', '1', '0', '0.159'],
 ['faban', '1', '1', '0.189']]

>>> target
['withspy', 'withoutspy', 'withoutspy', 'withoutspy']