通過名稱而不是index來訪問元素
from collections import namedtuple
In [20]: S = namedtuple('S', ['name', 'id'])
In [21]: sub = S('wuwei', '631')
In [22]: sub
Out[22]: S(name='wuwei', id='631')
In [23]: sub.name
Out[23]: 'wuwei'
In [24]: sub.id
Out[24]: '631'