展开一个嵌套序列 -- Python

方案一：使用迭代 yield

def fib(data):
    for item in data:
        if isinstance(item, list):
            yield from fib(item)
        else:
            yield item


source_data = [2, [3, 4], [4, 5, [7, 10]]]
res = [i for i in fib(source_data)]
print(res)

方案二

def fib(data):
    res = []
    for item in data:
        if isinstance(item, list):
            res.extend(fib(item))
        else:
            res.append(item)
    return res


source_data = [2, [3, 4], [4, 5, [7, 10]]]
print(fib(source_data))