不懂妮 2021-11-04 14:06 玉屏风散（颗粒）我们卖9.2元。口服液是21.开发者_如何学C2元
I need to generate a set of coordinates in Erlang. Given one coordinate, say (x,y) I need to generate (x-1, y-1), (x-1, y), (x-1, y+1), (x, y-1), (x, y+1), (x+1, y-1), (x+1, y), (x+1, y+1). Basically
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