Python已知xy坐標怎么批量計算兩點距離？

exp1:

x = [1,2,3,4,5,6,7,8,9]

res = []

for x1, x2 in zip(x[:-1], x[1:]):

res.append(math.sqrt(x1*x1+x2*x2))

-------

exp2:

x = [1,2,3,4,5,6,7,8,9]

res = []

res = map(lambda x1,x2: math.sqrt(x1*x1-x2*x2), x[:-1], x[1:])

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