擅长:python、mysql、java
<p>Python不会自动创建新的类<code>namedtuple</code>。您必须自己定义组合的<code>namedtuple</code>:</p>
<pre><code>A = namedtuple("A", "a b c")
B = namedtuple("B", "d e")
AB = namedtuple("AB", "a b c d e")
a = A(1,2,3)
b = B(4,5)
ab = AB(*(a+b))
>>> a
A(a=1, b=2, c=3)
>>> b
B(d=4, e=5)
>>> ab
AB(a=1, b=2, c=3, d=4, e=5)
</code></pre>