如何使用列表理解获得两个列表的并集？

Question

请考虑以下列表:

a = ['Orange and Banana', 'Orange Banana']
b = ['Grapes', 'Orange Banana']

如何获得以下结果:

c = ['Orange and Banana', 'Orange Banana', 'Grapes']

Answer 1

如果您有2个以上的列表,则应使用:

>>> a = ['Orange and Banana', 'Orange Banana']
>>> b = ['Grapes', 'Orange Banana']
>>> c = ['Foobanana', 'Orange and Banana']
>>> list(set().union(a,b,c))
['Orange and Banana', 'Foobanana', 'Orange Banana', 'Grapes']

Answer 2

>>> list(set(a).union(b))
['Orange and Banana', 'Orange Banana', 'Grapes']

谢谢@abarnert