原始表如下：
运用python怎么实现如下这种形式？
In [26]: l=[(0, 'a,b'),(2,'a,b,c'),(3,'a')] In [27]: for ID,s in l: ...: for v in s.split(','): ...: print(ID, v) ...: 0 a 0 b 2 a 2 b 2 c 3 a
Python
