请不要关闭这个,因为我是py3的新手。 帮助我从列表理解中“转换”两个方面:for in&;如果在。。。使用循环执行“普通”python3代码;条件:
为什么这么麻烦?因为坦率地说,它将帮助我理解这两个概念,因为我刚刚开始与py3,它使我焦虑。。。非常糟糕
# here is the original code that needs conversion...
friends = ["Wolf", "Frootie", "charlean", "Jenny"]
guests = ["xavier", "Bobbie", "wolf", "Charlean", "ashley"]
friends_lcase = [f.lower() for f in friends]
#guests_lcase = [g.lower() for g in guests]
present_friends = [
name.title() for name in guests if name.lower() in friends_lcase
]
print(present_friends)
# here below should be the equivalent of
# the above code, which is the issue for me...
# i tried the next but failed, help:
present_friends_2 = []
for i in friends:
if i.lower() in guests:
present_friends_2.append(i)
else:
present_friends_2.append(0)
print(present_friends_2)
尼廷·瓦尔盖塞的回答几乎是正确的
Wolf
没有被捕获,因为它在被添加到friends_lcase
之前没有被转换成小写请慢慢来看看python之类的好书 在这里提问之前,请先深入了解Python 3
祝Python好运
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