[python] 計算陣列元素的差

通常你的陣列每個元素都是位置, 如果要一次計算距離時, 就會用到這個東西.

Python 這種運算真是漂亮

Code
>>> t
[1, 3, 6]
>>> [j-i for i, j in zip(t[:-1], t[1:])]  # or use itertools.izip in py2k
[2, 3]

https://stackoverflow.com/questions/2400840/finding-differences-between-elements-of-a-list