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Create an iterator that combines variable-length sequences into tuples, and fills with the specified fill value if the sequence lengths are different.
Technology Stack : Built-in library
Code Type : Built-in library functions
Code Difficulty :
def zip_longest(*args, fillvalue=()):
"""对可变长度的序列进行组合,如果长度不同,用fillvalue填充。
Args:
*args: 可变数量的序列。
fillvalue: 当序列长度不同时的填充值。
Returns:
一个迭代器,包含组合后的元组,如果序列长度不同,则用fillvalue填充。
Example:
>>> list(zip_longest([1, 2, 3], ['a', 'b'], fillvalue='x'))
[(1, 'a'), (2, 'b'), (3, 'x')]
"""
args = [iter(arg) for arg in args]
while True:
yield tuple(next(arg, fillvalue) for arg in args)
# JSON描述