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Sep 2, 2019
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Sep 2, 2019
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sladesha's recent replies
Sep 5, 2019 Replied to a topic by songdg › Python › 请教如何判断一个列表中有多少个列表 |
def test(l):
ans = 0
def getListNumber(l):
nonlocal ans
for item in l:
if isinstance(item, list):
ans += 1
getListNumber(item)
return ans
return getListNumber(l)
if __name__ == '__main__':
List = [[1, 2, [3, [2], [1, 2]]]]
print(test(List))
ans = 0
def getListNumber(l):
nonlocal ans
for item in l:
if isinstance(item, list):
ans += 1
getListNumber(item)
return ans
return getListNumber(l)
if __name__ == '__main__':
List = [[1, 2, [3, [2], [1, 2]]]]
print(test(List))
Aug 7, 2019 Replied to a topic by css3 › Python › list 里边按 index 插入 list 并展开？有啥好方法吗 |
a[-1:-1] = b 即可
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