Python中merge的官方文档

你好，以下是Python中merge的官方文档说明：

函数签名：merge(iterables, key=None, reverse=False)

Docstring:
Merge multiple sorted inputs into a single sorted output.

Similar to sorted(itertools.chain(*iterables)) but returns an iterable,
does not pull the data into memory all at once, and assumes that each of the
input streams is already sorted (smallest to largest).

Key argument specifies a key function of one argument to extract a comparison key
from each element in the inputs. The key function defaults to an identity function
returning the element unchanged. If multiple items have the same key value,
the order in the output is undefined.

reverse = True will sort the iterable in descending order.

Usage:
merge(*iterables, key=None, reverse=False) --> generator

Example usage:

>>> list(merge([1, 3, 5], [2, 4, 6]))
[1, 2, 3, 4, 5, 6]
>>> list(merge([1, 3, 5], [2, 4, 6], reverse=True))
[6, 5, 4, 3, 2, 1]

以上是Python中merge的官方文档说明，希望这可以帮助您！