你可以试着仔细检查问题区域周围的线条。这里有一个小助手函数可能会有所帮助：

def lines_from(filename, *args):
    lines = set([i for a in args for i in ([a] if isinstance(a, int) else a)])
    buf = io.StringIO()
    with open(filename, 'r') as f:
        for i, line in enumerate(f, 1):
            if i in lines:
                buf.write(line)
    buf.seek(0)
    return buf

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示例用法：

with open('test.csv', 'w') as f:
    f.write('x,y\n')
    for i in range(2, 30):
        f.write(f'{i},{i*2}\n')

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然后又道：

b = lines_from('test.csv', 1, range(9, 12))

>>> b.read()
'x,y\n9,18\n10,20\n11,22\n'

>>> pd.read_csv(lines_from('test.csv', 1, range(9, 12)))
    x   y
0   9  18
1  10  20
2  11  22

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