在Python中将元组添加到元组列表中

result = [(x+dx, y+dy) for x,y in points for dx,dy in offsets]

有关更多信息,请参阅 list comprehensions

非常简单:

>>> rslt = []
>>> for x, y in points:
...     for dx, dy in offsets:
...         rslt.append( (x+dx, y+dy) )
... 
>>> rslt
[(1, 5), (1, 4), (1, 6), (2, 5), (0, 5), (3, 3), (3, 2), (3, 4), (4, 3), (2, 3), (8, 7), (8, 6), (8, 8), (9, 7), (7, 7)]

循环遍历点和偏移,然后构建向点添加偏移的新元组。

就个人而言,我喜欢阿洛克的答案。然而,对于电影迷来说 itertools ,基于itertools的等价物(在Python 2.6及更高版本中)是:

import itertools as it
ps = [(x+dx, y+dy) for (x, y), (dx, dy) in it.product(points, offsets)]

但是,在这种情况下,itertools解决方案是 不 比简单的要快(实际上有点慢,因为它需要将每个 x, y x、 y 但只有一次)。尽管如此,在其他情况下,itertools.product仍然是嵌套循环的优秀替代品,因此,值得了解它!)

如果您不关心结果中的重复项:

result = []
for ox, oy in offsets:
    for px, py in points:
        result.append((px + ox, py + oy))

result = set()
for ox, oy in offsets:
    for px, py in points:
        result.add((px + ox, py + oy))