擅长:python、mysql、java
<pre><code>#Join the given list
list(map("".join,(zip(["A", "B", "C"], ["1","2","3"]))))
# Given your list
l3=["A1","B1","C1","A2","B2"]
l2=["A1","A2","A3","B1","B2"]
l=["A1","A1","C3","B2","B2"]
# set() data structure ensure no duplicate
list(set(l))+list(set(l2))+list(set(l3))
# output should be:
# ['B2', 'C3', 'A1', 'B2', 'A3', 'A2', 'B1', 'A1', 'C1', 'B2', 'A2', 'B1', 'A1']
</code></pre>
<p>希望这有帮助</p>